{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn08492_010.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Dallas, Texas | 1922 | mapsnap generated fit (2026-09-21)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-21"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"111"},{"label":"placed","value":"97"},{"label":"unplaced","value":"14"},{"label":"fit sources","value":"georef-snap 50, georef 42, snap:0 3, georef-street 2"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"3 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p0 (tier 4, 32.76587,-96.76728 +/-2957m); p401 (tier 1, 32.76103,-96.78196 +/-258m); p402__1 (tier 1, 32.76874,-96.78067 +/-100m); p402__2 (tier 1, 32.76956,-96.78021 +/-100m); p421__1 (tier 1, 32.76114,-96.78343 +/-232m); p421__2 (tier 2, 32.77653,-96.77056 +/-1180m); p435 (tier 1, 32.75743,-96.78052 +/-253m); p436 (tier 1, 32.75626,-96.77911 +/-260m); p459 (tier 2, 32.77467,-96.75605 +/-100m); p462__1 (tier 2, 32.77877,-96.75030 +/-106m); p462__2 (tier 1, 32.78001,-96.75287 +/-118m); p464 (tier 2, 32.75314,-96.77362 +/-158m); p499F (tier 1, 32.77795,-96.76347 +/-237m); p499G (tier 1, 32.74666,-96.75834 +/-252m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0402__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p402 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2809.2"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4842.8"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0402__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0402","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"530.8,1675.8 1459.2,1733.9 1578.0,710.8 578.1,952.4 519.5,967.3 0.0,1086.6 0.0,1354.0 0.0,1624.0 -0.0,1695.6 530.8,1675.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0402__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,702.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7828639467185,32.76825138641629]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,702.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.78026344798477,32.770225649990664]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77849987790653,32.768584725453486]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.78110037664027,32.76661046187911]}},{"type":"Feature","properties":{"resourceCoords":[901.0,1684.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7799813,32.7680223]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0403/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p403","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0403/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0403","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1829.5 292.1,1820.8 314.5,1913.0 -0.0,1913.0 -0.0,0.0 1613.0,0.0 1613.0,95.6 1423.8,85.2 1342.0,1779.4 1613.0,1794.4 1613.0,1829.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0403/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.78798647439301,32.762578008708694]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.78551093557297,32.76468267992259]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7825634064988,32.762196359427826]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.78503894531882,32.760091688213926]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0404/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p404","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"2"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0404/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0404","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 1220.1,0.0 1300.8,1891.0 1136.9,1913.0 -0.0,1913.0 0.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0404/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1377.0,1288.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7820208,32.7642749]}},{"type":"Feature","properties":{"resourceCoords":[1377.0,320.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7832781,32.7654429]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0405/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p405","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0405/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0405","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1857.2 0.0,0.0 1344.2,0.0 1344.3,786.1 1613.0,803.9 1613.0,1869.8 -0.0,1857.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0405/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.78412864969997,32.76583651752692]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.78169541758795,32.76788252297463]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7788299610331,32.765438767756265]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.78126319314511,32.763392762308555]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0406/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p406","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0406/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0406","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1273.6,1616.4 255.9,1615.0 264.9,563.4 -0.0,543.5 -0.0,232.1 515.5,250.9 1443.8,364.6 1273.6,1616.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0406/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.78175552475945,32.76723528127716]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77931036581495,32.76932675275859]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77638118747443,32.76687105771681]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77882634641892,32.764779586235385]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0407/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p407","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0407/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0407","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1601.2,0.0 1437.2,1325.6 150.2,1365.1 237.3,697.4 -0.0,691.2 0.0,0.0 1601.2,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0407/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.78170981954727,32.770806501138765]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77920459390576,32.772810120394574]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77639833815405,32.77029420517814]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77890356379557,32.76829058592233]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0408/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p408","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0408/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0408","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"95.4,1632.0 324.9,0.0 1613.0,0.0 1414.3,1284.6 1264.3,1636.0 95.4,1632.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0408/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77996937324986,32.76877649215202]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77753311796033,32.77084828331768]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7746314401504,32.76840158294211]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77706769543992,32.76632979177645]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0409/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p409","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0409/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0409","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"363.4,490.8 -0.0,484.4 -0.0,-0.0 1613.0,0.0 1613.0,451.2 1209.0,556.0 1178.5,481.6 1219.7,1795.5 205.3,1681.5 363.4,490.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0409/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.78049564848689,32.77296810152999]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77806247028043,32.77498430083293]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77523851638259,32.77254080849789]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77767169458905,32.77052460919495]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0410/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p410","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0410/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0410","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"436.6,0.0 1572.0,0.0 1545.2,116.2 1613.0,125.6 1613.0,1818.4 -0.0,1791.5 -0.0,498.4 17.6,544.3 426.4,448.0 436.6,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0410/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77869354683104,32.77442201257154]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77633005304352,32.776471375019696]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77345961648241,32.77409789001982]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77582311026993,32.77204852757166]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0411/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p411","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0411/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0411","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"165.3,1520.5 162.8,68.5 1008.8,51.5 1268.1,1702.2 74.0,1892.5 165.3,1520.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0411/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77807125926168,32.77100499024074]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77527779331922,32.77271180490558]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77288724436637,32.76990641448092]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77568071030883,32.76819959981608]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0412/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p412","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0412/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0412","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,112.8 1613.0,118.0 1613.0,1743.2 -0.0,1754.8 -0.0,112.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0412/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77643241238731,32.77214436513426]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7739415948682,32.77423442289332]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77101423484497,32.77173301067241]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77350505236407,32.76964295291335]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0413/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p413","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"6"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0413/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0413","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"380.8,372.3 315.5,364.2 340.6,252.0 -0.0,256.6 0.0,0.0 1613.0,0.0 1613.0,109.1 1482.7,139.0 1457.2,1770.2 389.6,1756.7 380.8,372.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0413/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[975.0,1798.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7730149,32.7752395]}},{"type":"Feature","properties":{"resourceCoords":[428.0,1129.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.774896,32.775395]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0414/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p414","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0414/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0414","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"123.8,8.1 1613.0,0.0 1613.0,1661.8 58.0,1688.2 58.0,1751.0 -0.0,1751.7 -0.0,144.3 125.4,113.5 123.8,8.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0414/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[58.0,1751.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.772171,32.775939]}},{"type":"Feature","properties":{"resourceCoords":[1587.0,1038.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.770816,32.778942]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0415/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p415","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0415/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0415","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"283.8,1854.0 268.2,244.2 371.0,242.6 364.7,0.0 1484.9,0.0 1495.3,1789.7 283.8,1854.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0415/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7745565493281,32.774058007726445]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77201824498971,32.77614711169583]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76909215952624,32.773598064098366]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77163046386462,32.77150896012898]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0416/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p416","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0416/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0416","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1479.0,1738.2 1479.2,1775.2 -0.0,1809.2 21.4,0.0 1613.0,0.0 1613.0,165.9 1585.8,165.9 1562.0,1725.3 1479.0,1738.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0416/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77230362978999,32.77599624783691]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76978103430233,32.778131899105986]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76678968462076,32.775598684555156]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76931228010842,32.77346303328608]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0417/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p417","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0417/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0417","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"177.1,1614.5 -0.0,1616.5 0.0,0.0 1107.7,0.0 1132.3,703.4 1368.0,697.2 1379.0,1139.0 1613.0,1130.3 1613.0,1651.6 266.0,1654.2 177.1,1614.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0417/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1048.0,1660.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7698584,32.7821067]}},{"type":"Feature","properties":{"resourceCoords":[1379.0,1139.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7688129,32.7828067]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0418/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p418","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0418/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0418","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"234.6,717.6 -0.0,716.5 0.0,-0.0 1613.0,0.0 1613.0,1913.0 1471.2,1843.2 1474.0,1700.2 444.8,1668.6 463.0,1153.3 230.0,1154.7 234.6,717.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0418/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76855077960103,32.78496371754155]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76519790120886,32.784088164293756]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76642436140455,32.78072143565945]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76977723979671,32.781596988907246]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0419/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p419","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0419/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0419","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1913.0 1402.6,1913.0 295.9,1341.6 -0.0,1905.2 0.0,0.0 252.7,0.0 370.8,41.6 1613.0,51.6 1613.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0419/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77211727168802,32.78284428119522]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76887232828102,32.781937235330645]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77014287552204,32.778678817584364]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77338781892904,32.779585863448936]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0420/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p420","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0420/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0420","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1883.4 51.3,1893.5 390.9,137.7 1480.6,359.4 1308.0,1252.3 1326.6,776.0 1249.9,785.5 1172.7,1023.1 1175.1,1342.4 1231.5,1550.8 1414.3,1821.3 1380.1,1913.0 1053.9,1913.0 1137.3,1773.3 524.2,1666.5 446.9,1770.3 635.9,1913.0 -0.0,1913.0 -0.0,1883.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0420/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1420.0,679.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.766794,32.7806044]}},{"type":"Feature","properties":{"resourceCoords":[602.0,176.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7684542,32.7817258]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0422/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p422","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0422/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0422","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"877.0,0.0 878.8,103.5 1008.5,335.4 1137.3,319.9 1340.6,580.8 1312.5,589.5 1295.5,1552.7 387.3,1577.8 408.6,0.0 877.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0422/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77019747935358,32.777341701851356]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76770059074991,32.779449296689144]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76474849058464,32.77694193832744]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76724537918831,32.77483434348965]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0423/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p423","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0423/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0423","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,352.4 0.0,0.0 129.0,0.0 1613.0,50.3 1613.0,677.4 1613.0,1723.5 875.0,1770.9 385.7,1789.1 -0.0,352.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0423/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76923852508529,32.778814234564734]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76675240892304,32.780988401616916]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76370701199974,32.778491901287964]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76619312816199,32.77631773423578]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0424/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p424","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0424/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0424","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1332.6,1642.6 349.8,1639.3 353.5,1913.0 -0.0,1913.0 -0.0,339.0 144.0,337.4 120.5,244.9 1448.6,239.1 1448.2,203.8 1613.0,211.1 1613.0,238.7 1324.2,239.7 1332.6,1642.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0424/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.78528983509045,32.76075819220875]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.78280065368217,32.762828290630885]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77990162086252,32.76032820078512]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7823908022708,32.75825810236298]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0425/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p425","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0425/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0425","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"609.6,243.3 610.0,215.6 1308.7,244.1 1306.5,1913.0 306.9,1913.0 318.7,243.1 609.6,243.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0425/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[779.0,925.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.781143,32.7618592]}},{"type":"Feature","properties":{"resourceCoords":[779.0,1651.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7800377,32.7609283]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0426/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p426","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0426/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0426","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"968.0,1645.2 1052.3,1913.0 920.5,1913.0 910.5,1645.1 321.9,1642.4 333.0,250.3 1306.7,241.1 1301.0,1647.5 968.0,1645.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0426/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1301.0,936.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7788216,32.7637885]}},{"type":"Feature","properties":{"resourceCoords":[1301.0,1648.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7777174,32.7628699]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0427/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p427","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"4"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0427/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0427","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"274.9,1913.0 271.3,252.4 1613.0,260.2 1613.0,1913.0 274.9,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0427/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1360.0,934.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7771542,32.7652194]}},{"type":"Feature","properties":{"resourceCoords":[275.0,1657.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7777174,32.7628699]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0428/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p428","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0428/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0428","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"387.3,265.0 1613.0,264.3 1613.0,934.7 1477.0,935.0 1469.2,1913.0 370.8,1913.0 387.3,265.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0428/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1477.0,935.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7750837,32.766991]}},{"type":"Feature","properties":{"resourceCoords":[128.0,935.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7771542,32.7652194]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0429/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p429","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"4"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0429/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0429","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1540.3,289.1 1525.2,1648.8 90.6,1645.7 98.0,940.0 234.0,940.0 235.3,269.5 1540.3,289.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0429/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[98.0,940.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7750837,32.766991]}},{"type":"Feature","properties":{"resourceCoords":[1535.0,940.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7728829,32.7688817]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0430/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p430","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0430/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0430","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"49.2,266.7 1574.8,282.5 1556.3,1646.5 42.2,1637.2 49.2,266.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0430/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77437944079921,32.770005318902406]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77193093234733,32.772113082550845]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76897884515195,32.76965409946247]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77142735360383,32.76754633581403]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0431/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p431","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0431/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0431","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1641.5 10.2,1644.1 50.7,287.7 1613.0,266.1 1613.0,1641.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0431/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77208244885024,32.77199788717995]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76966215495648,32.77415037680687]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76664735530889,32.77171978560367]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76906764920265,32.76956729597675]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0432/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p432","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0432/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0432","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1371.0,1784.7 791.7,1792.2 793.2,1652.7 50.2,1655.3 36.5,259.1 1404.0,250.2 1392.5,1510.1 1436.0,1561.0 1437.0,1726.2 1371.0,1784.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0432/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76969572224164,32.77409231669327]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76728716041555,32.77619257929308]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76434544216434,32.77377382625471]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76675400399043,32.7716735636549]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0433/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p433","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0433/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0433","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"36.6,1629.6 43.3,1445.2 -0.0,1395.5 -0.0,112.8 1327.5,77.1 1325.5,1453.8 1287.6,1913.0 -0.0,1913.0 -0.0,1661.2 36.6,1629.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0433/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76745603263848,32.77580650785529]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7649846443303,32.77792229075189]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76202111319155,32.77544050778103]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76449250149973,32.77332472488443]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0434/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p434","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"1"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0434/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0434","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"13.1,1913.0 22.2,90.9 188.4,73.3 171.3,0.0 1613.0,0.0 1613.0,1913.0 13.1,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0434/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76547504476183,32.77753837123068]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76296521221752,32.77959385444012]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76006471569329,32.77709208354472]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7625745482376,32.775036600335284]}},{"type":"Feature","properties":{"resourceCoords":[626.0,64.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.764404,32.7782524]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0437/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p437","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"3"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0437/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0437","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"125.5,277.3 1116.0,280.5 1110.9,829.4 1151.5,980.2 1384.5,925.0 1589.8,924.2 1590.9,985.0 1368.9,997.9 1371.0,1587.0 770.5,1593.8 770.5,1913.0 -0.0,1913.0 -0.0,553.2 127.4,553.2 125.5,277.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0437/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1116.0,280.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7807441,32.7603218]}},{"type":"Feature","properties":{"resourceCoords":[1371.0,1587.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7783751,32.758964]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0438/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p438","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"4"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0438/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0438","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"832.4,209.7 1429.0,202.0 1429.0,1329.5 827.8,1338.3 830.5,1540.5 200.2,1541.3 203.2,1913.0 -0.0,1913.0 0.0,0.0 66.3,0.0 67.2,528.0 832.8,526.8 832.4,209.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0438/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1429.0,1623.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7762131,32.7571194]}},{"type":"Feature","properties":{"resourceCoords":[1429.0,202.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7783751,32.758964]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0439/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p439","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0439/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0439","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"314.0,837.5 316.6,547.2 1311.2,542.0 1318.2,1582.5 573.0,1591.0 314.0,837.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0439/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[785.0,284.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7800377,32.7609283]}},{"type":"Feature","properties":{"resourceCoords":[573.0,1591.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7783751,32.758964]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0440/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p440","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0440/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0440","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1010.8 -0.0,953.6 339.0,303.0 994.1,302.8 1331.6,303.4 1602.5,1683.6 1487.8,1913.0 1056.2,1913.0 339.2,1913.0 -0.0,1010.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0440/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[339.0,1608.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7772403,32.7599287]}},{"type":"Feature","properties":{"resourceCoords":[339.0,303.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7792286,32.7615987]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0441/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p441","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"3"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0441/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0441","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"257.0,846.9 250.4,533.3 1611.2,514.5 1613.0,1547.0 1156.8,1554.6 1012.8,1604.5 863.3,1913.0 414.4,1913.0 540.1,1651.3 395.7,1573.0 247.0,1567.0 236.9,939.5 -0.0,948.0 -0.0,455.5 153.7,684.1 229.2,883.5 257.0,846.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0441/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[247.0,1567.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7757806,32.7611913]}},{"type":"Feature","properties":{"resourceCoords":[247.0,273.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7777174,32.7628699]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0442/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p442","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0442/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0442","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"375.1,1352.2 382.9,563.6 1369.6,552.1 1371.0,1340.1 375.1,1352.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0442/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1423.0,1574.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7721051,32.7643065]}},{"type":"Feature","properties":{"resourceCoords":[1489.0,276.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7739908,32.7660725]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0443/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p443","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0443/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0443","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"119.9,276.2 1565.7,272.4 1573.2,1561.0 -0.0,1572.6 -0.0,551.1 120.5,550.8 119.9,276.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0443/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77459771088878,32.76627390185128]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7721347230356,32.7683697499438]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7691994468626,32.76589612240199]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77166243471578,32.76380027430947]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0444/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p444","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0444/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0444","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"54.4,1560.8 54.7,272.4 1568.5,282.2 1565.4,1563.4 54.4,1560.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0444/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77229256046148,32.76823449120125]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76984444810972,32.77034338040695]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76689084312,32.76788474630426]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76933895547175,32.76577585709856]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0445/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p445","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0445/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0445","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1596.5,268.5 1613.0,1913.0 22.8,1913.0 26.2,298.6 1596.5,268.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0445/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76998505457637,32.7702786941691]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76749100225085,32.77242065319681]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76449101255758,32.769915939085166]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7669850648831,32.767773980057456]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0446/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p446","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0446/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0446","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1361.3,405.0 1354.0,655.8 1613.0,661.5 1613.0,1913.0 7.7,1913.0 37.0,265.0 778.7,272.2 774.5,409.0 1361.3,405.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0446/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[774.0,409.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7657575,32.7728571]}},{"type":"Feature","properties":{"resourceCoords":[37.0,265.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7670955,32.7720472]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0447/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p447","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0447/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0447","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1336.3,887.5 1289.0,1699.8 267.1,1683.5 247.4,340.2 1444.7,330.1 1336.3,887.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0447/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76498324522467,32.7737715047349]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7625905425752,32.77586730526628]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75965506082332,32.773464489367306]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7620477634728,32.77136868883593]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0448/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p448","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0448/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0448","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"136.8,338.2 1599.0,361.4 1613.0,1913.0 1353.1,1913.0 1350.6,1791.3 790.2,1793.3 544.7,1706.4 -0.0,1712.8 35.5,891.2 136.8,338.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0448/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.763062,32.7754917]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7605983,32.7775744]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7576605,32.775117599999994]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7601242,32.7730349]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0449/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p449","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"11"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0449/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0449","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"925.0,1337.6 428.4,1339.4 432.8,212.3 1177.0,205.8 1179.5,787.9 925.0,789.0 925.0,1337.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0449/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[925.0,789.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7767368,32.7588505]}},{"type":"Feature","properties":{"resourceCoords":[925.0,1631.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7754502,32.7577614]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0450/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p450","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0450/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0450","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1088.8,1411.1 73.2,1382.2 81.5,790.4 331.5,791.0 332.2,516.8 1452.8,519.9 1088.8,1411.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0450/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[332.0,791.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.776347,32.759179]}},{"type":"Feature","properties":{"resourceCoords":[1282.0,209.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7757806,32.7611913]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0451/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p451","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0451/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0451","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"396.0,1649.1 405.5,1624.9 395.7,1343.5 125.1,1351.0 432.6,565.2 874.6,569.8 1022.9,267.6 1164.8,219.9 1357.0,215.4 1346.8,964.7 1410.0,1224.4 1387.7,1614.5 396.0,1649.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0451/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77653774419733,32.76113661480511]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77403595758976,32.76322031570943]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7711178634895,32.76070757569212]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77361965009706,32.7586238747878]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0452/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p452","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0452/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0452","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"171.1,1591.0 196.6,1233.7 137.2,974.1 157.8,227.8 45.0,228.7 46.1,0.0 1455.3,0.0 1461.2,1661.8 586.0,1650.2 616.2,1347.4 525.9,1347.2 492.7,1652.7 126.4,1645.0 171.1,1591.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0452/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77470027491815,32.76269527945914]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7722240380269,32.76481599139208]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76925405730964,32.7623289589801]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77173029420088,32.76020824704716]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0453/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p453","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0453/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0453","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"65.1,1671.8 58.2,235.9 1574.0,217.0 1576.2,1672.4 65.1,1671.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0453/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[828.0,1196.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.769437,32.764063]}},{"type":"Feature","properties":{"resourceCoords":[1574.0,217.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7698002,32.7662996]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0454/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p454","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0454/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0454","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1568.1,1703.8 42.2,1695.2 47.8,219.3 1574.3,213.7 1568.1,1703.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0454/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[804.0,715.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.767899,32.7666434]}},{"type":"Feature","properties":{"resourceCoords":[44.0,1200.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7683046,32.765049]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0455/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p455","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0455/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0455","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"18.9,595.2 1612.5,601.1 1613.0,1913.0 7.3,1913.0 18.9,595.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0455/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76792386045825,32.76855374257159]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76544379460432,32.770721818813676]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76240728165638,32.76823110498897]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76488734751031,32.766063028746885]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0456/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p456","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0456/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0456","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"47.5,584.0 1591.5,571.6 1613.0,1913.0 47.9,1913.0 47.5,584.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0456/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[791.0,685.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7631818,32.770817]}},{"type":"Feature","properties":{"resourceCoords":[55.0,1165.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.763541,32.769196]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0457/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p457","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0457/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0457","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1322.7,262.6 1334.3,1745.9 1167.2,1748.8 1164.1,1639.3 347.2,1640.5 296.4,270.3 1322.7,262.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0457/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76285588945494,32.77197536936661]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76041582759242,32.774014805001464]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75755937451918,32.77156436004214]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75999943638169,32.769524924407285]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0458/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p458","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0458/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0458","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"37.2,1396.1 60.5,0.0 612.2,0.0 826.5,86.8 1368.6,91.3 1369.7,209.0 1613.0,211.8 1588.0,1545.6 544.2,1573.0 565.8,1397.0 37.2,1396.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0458/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7605298,32.7732072]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7580134,32.7753846]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7549422,32.7728753]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7574586,32.7706979]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0460/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p460","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"4"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0460/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0460","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913.0 0.0,0.0 1613.0,0.0 1613.0,1700.8 1408.8,1653.8 1382.7,1813.1 97.5,1595.2 47.9,1913.0 -0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0460/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1403.0,1689.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7522174,32.7767273]}},{"type":"Feature","properties":{"resourceCoords":[888.0,1689.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7529094,32.7758459]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0461/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p461","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0461/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0461","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"497.9,1516.4 131.6,0.0 1613.0,0.0 1613.0,1666.3 1478.1,1666.9 1505.7,1913.0 275.4,1913.0 258.1,1518.5 497.9,1516.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0461/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[272.0,1701.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7519924,32.7765525]}},{"type":"Feature","properties":{"resourceCoords":[1296.0,1701.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7503836,32.7778173]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0463/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p463","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0463/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0463","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"790.1,1004.4 797.2,1913.0 -0.0,1913.0 -0.0,0.0 112.9,0.0 115.0,366.9 315.7,367.1 310.7,0.0 933.1,0.0 941.5,1005.8 790.1,1004.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0463/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7787191229217,32.75525040046942]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77620127868215,32.75734235540365]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77327180869172,32.75481332915796]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77578965293127,32.75272137422373]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0465/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p465","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"14"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0465/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0465","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1253.1,0.0 1252.1,293.0 1464.0,1538.5 1613.0,1535.7 1613.0,1913.0 1450.9,1913.0 1453.6,1850.0 715.7,1846.2 714.9,1913.0 426.4,1913.0 3.7,1420.1 -0.0,1220.4 152.9,1222.7 157.1,4.2 1253.1,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0465/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[755.0,293.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7762131,32.7571194]}},{"type":"Feature","properties":{"resourceCoords":[1252.0,293.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7754502,32.7577614]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0466/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p466","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0466/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0466","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"267.0,278.8 268.8,38.8 1303.9,88.6 1339.8,0.0 1613.0,0.0 1613.0,284.0 1364.0,890.8 1347.9,1453.2 436.3,1430.4 267.0,278.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0466/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[857.0,867.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7736479,32.7577985]}},{"type":"Feature","properties":{"resourceCoords":[451.0,1533.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.773212,32.7564276]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0467/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p467","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0467/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0467","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"449.3,324.7 1425.1,289.6 1406.5,312.5 1613.0,313.7 1613.0,1562.1 228.0,1567.7 227.8,913.6 449.3,324.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0467/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[807.0,1565.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7709696,32.7583334]}},{"type":"Feature","properties":{"resourceCoords":[807.0,313.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7728749,32.759955]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0468/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p468","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0468/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0468","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"321.8,300.8 483.1,303.8 515.3,0.0 605.1,0.0 575.9,301.1 1613.0,313.7 1613.0,1443.3 315.5,1438.3 321.8,300.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0468/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77259928609757,32.76095534998497]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77010188203553,32.76308344371256]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76712162398849,32.76057510083861]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76961902805053,32.758447007111016]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0469/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p469","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"20"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0469/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0469","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"269.5,300.6 1544.2,307.6 1508.4,1539.4 258.8,1543.5 269.5,300.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0469/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[379.0,900.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7685167,32.762046]}},{"type":"Feature","properties":{"resourceCoords":[1456.0,1563.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7658467,32.7625992]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0470/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p470","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0470/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0470","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"16.6,303.2 1588.9,294.4 1604.3,1396.9 15.7,1419.6 16.6,303.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0470/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76814689553554,32.764702219606725]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76564343484776,32.766789201350186]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7627206299136,32.7642748799061]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76522409060138,32.76218789816264]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0471/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p471","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0471/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0471","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"10.4,247.2 1390.0,228.4 1405.2,1856.6 1111.2,1858.6 871.9,1913.0 19.0,1899.2 10.4,247.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0471/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76527254502545,32.76637999777961]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76280110603932,32.768482634777456]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75985631284112,32.76600052720707]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76232775182727,32.76389789020922]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0472/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p472","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0472/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0472","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1910.0 -0.0,1866.2 -0.0,218.8 257.0,217.7 272.1,243.9 1613.0,233.1 1613.0,1910.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0472/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7631270910941,32.768173382545925]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76070733147077,32.77027076994284]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75776983535133,32.76784061041692]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76018959497466,32.76574322302]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0473/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p473","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0473/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0473","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"510.6,183.1 1307.2,163.5 1311.9,270.2 1474.9,263.6 1514.3,1913.0 1033.8,1913.0 1032.4,1735.2 687.5,1742.5 488.9,1806.0 260.3,1822.0 228.4,169.1 504.2,155.4 510.6,183.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0473/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[75.0,1002.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7593392,32.7686698]}},{"type":"Feature","properties":{"resourceCoords":[498.0,1578.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.757803,32.768437]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0474/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p474","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0474/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0474","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"45.3,1913.0 31.6,206.7 569.3,193.7 552.0,373.3 1613.0,318.1 1613.0,1913.0 45.3,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0474/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[552.0,1676.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7551529,32.7701558]}},{"type":"Feature","properties":{"resourceCoords":[552.0,333.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7572173,32.7719319]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0475/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p475","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0475/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0475","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1209.5,640.5 1262.7,631.3 1283.5,1913.0 -0.0,1913.0 -0.0,1886.0 230.1,1895.7 328.9,0.0 1098.8,0.0 1209.5,640.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0475/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[707.0,1180.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7535396,32.7727374]}},{"type":"Feature","properties":{"resourceCoords":[707.0,1615.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.752854,32.7721954]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0476/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p476","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0476/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0476","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913.0 -0.0,236.6 1471.2,266.1 1368.6,1913.0 -0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0476/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75453809202166,32.77488983984122]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75221242138144,32.77706885503579]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.74916036725702,32.77473336809519]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75148603789724,32.77255435290062]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0477/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p477","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0477/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0477","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1454.3,1900.4 88.6,1913.0 144.9,472.1 1381.5,552.0 1454.3,1900.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0477/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75261656337656,32.77667248157435]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75025728952701,32.77878277822968]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.74730143119842,32.77641359060783]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.74966070504797,32.7743032939525]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0478/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p478","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0478/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0478","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,265.5 139.0,281.4 170.5,0.0 1613.0,0.0 1613.0,1913.0 -0.0,1913.0 -0.0,265.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0478/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75056573236948,32.778387820170416]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.74840851823632,32.78053872755928]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.74539571261626,32.77837249509112]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.74755292674942,32.77622158770225]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0479/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p479","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0479/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0479","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"911.0,1790.1 699.5,1789.8 736.0,1913.0 -0.0,1913.0 0.0,0.0 427.6,489.2 715.2,487.7 715.1,421.1 1457.2,420.9 1438.6,941.8 911.0,1790.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0479/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7756351580281,32.75469426031765]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77313928915379,32.75677254744584]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77022898591677,32.75426557087183]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77272485479108,32.75218728374364]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0480/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p480","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0480/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0480","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"446.4,0.0 1356.4,0.0 1346.9,1913.0 -0.0,1913.0 -0.0,1622.6 436.8,937.0 451.8,477.0 614.1,476.6 613.1,98.8 464.0,102.0 446.4,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0480/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1350.0,1765.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.769307,32.755418]}},{"type":"Feature","properties":{"resourceCoords":[464.0,102.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.773212,32.7564276]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0481/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p481","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0481/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0481","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1467.7,954.0 1494.5,1492.5 1441.1,1776.8 1613.0,1778.8 1613.0,1913.0 1217.5,1913.0 1206.4,1913.0 214.0,1913.0 193.6,106.4 1515.8,94.3 1467.7,954.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0481/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77231587220211,32.75748232994437]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76982457078441,32.75953150490458]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76695494563205,32.75702919352721]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76944624704976,32.754980018567]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0482/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p482","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0482/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0482","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1536.1 -0.0,339.8 40.8,90.5 -0.0,87.6 -0.0,-0.0 1437.2,0.0 1437.5,99.3 1295.5,97.8 1285.3,1537.3 9.6,1495.6 -0.0,1536.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0482/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77003225136274,32.75934864322164]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76758666801103,32.76141636109499]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76469101716636,32.75896001949972]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76713660051806,32.75689230162637]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0483/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p483","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0483/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0483","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1798.5 -0.0,123.1 1382.3,103.9 1406.5,1796.5 -0.0,1798.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0483/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76810820900691,32.76104556405413]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76560329160641,32.76313376444802]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76267890439533,32.76061787292257]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76518382179583,32.75852967252868]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0484/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p484","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0484/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0484","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1591.1,0.0 1588.8,1801.0 -0.0,1792.0 12.4,0.0 1591.1,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0484/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76597265131313,32.76284043413681]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7634890397082,32.76497089289486]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76050540133114,32.762476459956986]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76298901293607,32.76034600119894]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0485/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p485","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0485/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0485","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"726.3,166.7 937.5,166.0 1037.1,1.4 1039.2,290.1 1494.9,286.8 1472.2,928.0 1180.8,1913.0 838.9,1913.0 786.9,1654.2 -0.0,1648.0 -0.0,-0.0 28.4,0.0 27.6,292.8 762.5,289.5 726.3,166.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0485/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1472.0,928.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7695058,32.7532115]}},{"type":"Feature","properties":{"resourceCoords":[1222.0,1771.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7686083,32.7517859]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0486/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p486","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0486/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0486","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"480.8,947.3 496.1,299.0 1388.9,281.9 1377.2,937.0 1260.1,1773.0 237.4,1802.2 480.8,947.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0486/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[930.0,141.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7700098,32.7548319]}},{"type":"Feature","properties":{"resourceCoords":[1260.0,1773.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7670589,32.7531083]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0487/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p487","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0487/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0487","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"133.4,1779.2 237.8,936.8 239.0,256.2 1352.9,260.7 1249.2,773.0 1249.4,1795.3 1613.0,1795.2 1613.0,1913.0 999.0,1913.0 1021.4,1763.2 133.4,1779.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0487/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76986250700719,32.75529511579335]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76734514231812,32.75728798473899]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76455443609416,32.75475943232721]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76707180078323,32.75276656338158]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0488/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p488","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0488/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0488","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"100.0,435.9 1.2,412.9 384.8,405.7 382.3,275.5 271.1,277.2 271.3,0.0 1503.4,0.0 1548.4,1913.0 -0.0,1913.0 -0.0,929.0 100.0,435.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0488/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76819369630455,32.75709215268172]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76557885142908,32.759163140557035]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76267869468802,32.75653672633806]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76529353956349,32.75446573846275]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0489/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p489","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0489/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0489","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"576.0,1744.0 573.5,1913.0 -0.0,1913.0 -0.0,118.5 1533.5,119.5 1536.5,1720.0 576.0,1744.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0489/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76555114192394,32.75882837463521]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76303898219678,32.76092844062161]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76009804586515,32.75840521681969]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76261020559231,32.756305150833285]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0490/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p490","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0490/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0490","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"95.2,1748.5 98.3,131.8 1577.7,124.6 1577.7,1091.7 1613.0,1105.6 1613.0,1313.8 1579.3,1325.5 1588.5,1734.4 95.2,1748.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0490/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76333123092424,32.76071167745883]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76085349724555,32.76279834541437]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75793126007845,32.760309753326936]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76040899375714,32.7582230853714]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0491/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p491","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0491/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0491","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"514.5,100.2 645.8,71.6 1265.6,72.3 1305.7,94.7 1392.5,93.4 1374.2,1748.9 84.7,1740.4 88.7,1219.0 105.7,1213.3 105.4,1108.1 88.9,1101.4 95.0,90.1 514.5,100.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0491/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76288331963237,32.763925230020014]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75800075331226,32.76810947550542]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75214080701207,32.763205674071195]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75702337333217,32.75902142858579]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0492/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p492","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0492/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0492","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"584.2,57.9 583.3,147.8 826.2,153.7 825.5,187.7 1613.0,195.5 1613.0,706.5 1415.8,714.3 1405.0,1359.2 1613.0,1351.5 1350.7,1599.3 1400.2,1652.4 1399.3,1704.6 1535.7,1852.8 1535.1,1913.0 50.1,1913.0 50.5,1741.5 -0.0,1755.4 -0.0,98.8 308.8,86.9 409.7,57.2 584.2,57.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0492/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75868179062658,32.767554130564854]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75374200927762,32.771694789595124]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.74794286093628,32.766733732988094]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75288264228524,32.762593073957824]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0493/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p493","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0493/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0493","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"228.1,1403.2 -0.0,1413.4 -0.0,767.9 197.2,756.8 188.8,254.4 726.0,228.0 726.9,241.8 1408.7,192.4 1421.6,1334.8 1613.0,1327.0 1613.0,1891.7 1451.3,1893.3 1452.0,1913.0 199.1,1913.0 146.8,1859.3 118.7,1884.0 -0.0,1759.2 -0.0,1603.2 123.3,1476.4 228.1,1403.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0493/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75446671280459,32.77135835510151]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.74945010607985,32.77542495087852]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.74375445595186,32.770386941600684]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7487710626766,32.76632034582368]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0494/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p494","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"11"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0494/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0494","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1367.8 -0.0,247.8 654.0,216.2 1406.0,146.1 1393.4,0.0 1613.0,0.0 1613.0,1913.0 167.2,1913.0 166.7,1362.7 -0.0,1367.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0494/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[469.0,929.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7459224,32.773845]}},{"type":"Feature","properties":{"resourceCoords":[890.0,68.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7472666,32.7772303]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0495/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p495","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0495/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0495","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1050.0,56.9 1558.2,44.4 1491.5,1042.1 1540.0,1784.1 1613.0,1783.3 1613.0,1888.5 1037.6,1913.0 -0.0,1913.0 -0.0,0.0 830.7,0.0 858.8,129.8 1030.5,128.4 1050.0,56.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0495/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77205735985119,32.74927327636523]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76702074191667,32.7533645231144]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76129198422993,32.748305164858536]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76632860216445,32.74421391810937]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0496/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p496","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"21"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0496/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0496","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1163.0 -0.0,682.8 85.7,156.0 528.6,158.7 515.1,233.1 821.2,240.4 823.0,181.7 1443.7,196.4 1455.6,254.0 1613.0,253.5 1613.0,1913.0 1581.6,1913.0 1581.6,1913.0 35.3,1913.0 -0.0,1163.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0496/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[86.0,156.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7670589,32.7531083]}},{"type":"Feature","properties":{"resourceCoords":[1213.0,895.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.761379,32.754071]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0497/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p497","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0497/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0497","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"279.1,188.9 280.5,94.7 1518.5,81.0 1530.8,1913.0 131.7,1913.0 131.5,1838.0 162.7,1838.1 156.4,189.0 279.1,188.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0497/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76314537864408,32.756827088054514]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75819691153788,32.760963299578]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75240469507831,32.75599291663956]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75735316218451,32.751856705116076]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0498/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p498","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0498/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0498","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"73.0,0.0 1426.8,0.0 1433.0,161.5 1613.0,162.3 1613.0,1689.1 1519.5,1689.0 1521.3,1866.5 1613.0,1868.5 1613.0,1913.0 626.8,1913.0 627.8,1453.8 358.0,1455.6 353.0,1613.5 293.6,1661.8 80.4,1659.3 80.3,1913.0 -0.0,1913.0 -0.0,1533.2 79.3,1533.6 73.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0498/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75751573147531,32.75949734665349]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75265045894027,32.76361215254136]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.74688804711286,32.75872547775054]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7517533196479,32.754610671862665]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p499","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,235.7 1613.0,1913.0 274.5,1913.0 270.1,1740.9 360.9,1739.0 338.9,258.1 1613.0,235.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1161.0,838.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7477742,32.7637609]}},{"type":"Feature","properties":{"resourceCoords":[1161.0,1062.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7470922,32.7631651]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499A/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p499A","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499A/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499A","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1374.2,195.1 1395.9,223.4 1393.5,174.9 1613.0,175.3 1613.0,1913.0 81.5,1913.0 60.3,195.1 39.7,173.7 67.9,148.5 121.4,202.7 1374.2,195.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499A/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.74911578737976,32.767051473080244]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7441493325598,32.77102854143347]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.73857934866625,32.766040652088996]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.74354580348621,32.76206358373577]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499B/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p499B","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"4"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499B/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499B","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1190.8,121.8 1613.0,130.3 1613.0,1793.8 1483.8,1793.7 1484.4,1759.7 1404.1,1757.2 1402.0,1792.8 901.0,1781.6 821.0,1749.2 454.1,1743.3 383.4,1862.8 382.3,1913.0 -0.0,1913.0 -0.0,212.5 619.1,231.8 1186.8,225.4 1190.8,121.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499B/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[895.0,574.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7611611,32.7466941]}},{"type":"Feature","properties":{"resourceCoords":[765.0,1703.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7579946,32.743432]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499C/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p499C","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"9"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499C/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499C","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,197.2 1613.0,318.9 1547.7,318.6 1613.0,383.1 1613.0,547.7 1525.9,635.1 1613.0,721.2 1613.0,904.2 1409.0,1082.2 1449.8,1104.5 1447.2,1913.0 457.0,1913.0 453.0,1803.0 131.2,1808.0 102.7,119.2 1132.5,122.4 1132.2,197.2 1613.0,197.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499C/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[621.0,1283.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7552017,32.7480682]}},{"type":"Feature","properties":{"resourceCoords":[453.0,1803.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7541276,32.7462904]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499D/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p499D","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"1"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499D/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499D","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"74.6,611.2 161.3,523.5 160.8,359.1 95.4,294.9 160.6,294.9 160.2,173.3 995.0,170.1 995.8,544.2 1074.8,543.4 1074.4,293.6 1284.3,294.0 1342.8,245.8 1347.4,90.2 1613.0,86.0 1613.0,1913.0 -0.0,1913.0 -0.0,1020.5 172.9,870.9 161.9,696.8 74.6,611.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499D/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75649370799003,32.75347077493747]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75150528703983,32.75760851934041]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.74566650752378,32.75263612133104]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75065492847398,32.7484983769281]}},{"type":"Feature","properties":{"resourceCoords":[581.0,295.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7537965,32.7541944]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499E/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1922 | sanborn08492_010 p499E","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:33:44Z","modified":"2026-09-21T10:33:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499E/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499E","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"440.9,0.0 536.1,35.4 610.9,37.9 1033.1,35.0 1034.3,0.0 1116.0,0.0 1116.2,34.5 1569.5,27.9 1574.1,138.0 1613.0,138.1 1613.0,1913.0 -0.0,1913.0 -0.0,122.5 69.0,0.0 440.9,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492192204:08492_04_1922-0499E/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75903458892681,32.742324302398615]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75407875858319,32.74647512776286]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.74826702346985,32.74149653864188]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.75322285381347,32.73734571327764]}}]}}]}