{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn01881_005.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Galva, Illinois | 1913 | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"9"},{"label":"placed","value":"7"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 4, georef-snap 3"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p1__1 (tier 2, 41.16632,-90.04227 +/-574m); p1__2 (tier 1, 41.17108,-90.04977 +/-147m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galva, Illinois | 1913 | sanborn01881_005 p2","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"}],"created":"2026-09-23T05:57:21Z","modified":"2026-09-23T05:57:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1728.3 49.8,1704.5 49.8,1280.0 38.1,9.3 -0.0,-0.0 1613.0,0.0 1613.0,1789.9 1613.0,1790.7 1613.0,1913.0 805.1,1913.0 807.1,1723.0 494.7,1719.6 175.4,1913.0 -0.0,1913.0 -0.0,1728.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1058.0,770.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0421007,41.1689321]}},{"type":"Feature","properties":{"resourceCoords":[1058.0,1280.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.042108,41.1679918]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galva, Illinois | 1913 | sanborn01881_005 p3","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"22"}],"created":"2026-09-23T05:57:21Z","modified":"2026-09-23T05:57:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913.0 0.0,-0.0 1541.0,0.0 1569.5,1669.8 1394.2,1755.9 425.4,1765.8 425.4,1913.0 -0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[547.0,1262.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0471239,41.1680138]}},{"type":"Feature","properties":{"resourceCoords":[1545.0,241.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0445948,41.1698944]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galva, Illinois | 1913 | sanborn01881_005 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T05:57:21Z","modified":"2026-09-23T05:57:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,-0.0 1613.0,1913.0 382.9,1913.0 383.1,1834.3 97.1,1835.0 95.9,1331.7 -0.0,1331.9 0.0,-0.0 1613.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.03633119967907,41.164361556842366]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.03636420930215,41.16133428244906]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.04110004069096,41.16136396200005]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.04106703106788,41.16439123639336]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galva, Illinois | 1913 | sanborn01881_005 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T05:57:21Z","modified":"2026-09-23T05:57:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1913.0 86.4,1913.0 76.1,932.6 13.8,804.5 196.1,802.6 194.2,627.7 -0.0,311.5 1586.2,317.9 1571.0,625.0 1502.9,743.4 1484.1,900.1 1613.0,1250.7 1613.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0005/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.04273069151661,41.16717782429238]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.04279543232043,41.16416515588898]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.04750839145215,41.164223365802144]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.04744365064833,41.167236034205544]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galva, Illinois | 1913 | sanborn01881_005 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T05:57:21Z","modified":"2026-09-23T05:57:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1630.7 -0.0,62.9 323.7,55.8 322.8,242.2 1123.3,237.8 1122.0,0.0 1613.0,0.0 1613.0,115.5 1584.0,115.6 1588.1,839.4 1613.0,839.4 1592.4,1624.6 1089.8,1627.4 1091.3,1913.0 163.8,1913.0 162.2,1634.5 -0.0,1630.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0006/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.04353165492945,41.1672896187009]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.03953299697038,41.16725515717702]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.03958690768343,41.16365985942052]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.0435855656425,41.1636943209444]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0007__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galva, Illinois | 1913 | sanborn01881_005 p7 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"7"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4514.8"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3137.2"}],"created":"2026-09-23T05:57:21Z","modified":"2026-09-23T05:57:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0007__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1913.0 1613.0,1129.7 131.0,1128.8 130.8,1184.7 102.0,1184.7 103.9,1913.0 1613.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0007__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1115.0,1184.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0370894,41.1670227]}},{"type":"Feature","properties":{"resourceCoords":[102.0,1184.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.039608,41.1670385]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0007__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galva, Illinois | 1913 | sanborn01881_005 p7 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4518.8"}],"created":"2026-09-23T05:57:21Z","modified":"2026-09-23T05:57:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0007__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1128.7 1613.0,1129.7 1613.0,110.5 1222.7,91.7 994.5,0.0 892.9,0.0 552.4,122.3 -0.0,116.5 0.0,1128.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018811913:01881_1913-0007__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[51.0,607.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0471606,41.1632806]}},{"type":"Feature","properties":{"resourceCoords":[1526.0,607.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0434045,41.1632642]}}]}}]}