{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03571_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Aberdeen, Maryland | 1904 | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"12"},{"label":"placed","value":"6"},{"label":"unplaced","value":"6"},{"label":"fit sources","value":"georef 6"},{"label":"key map","value":"none"},{"label":"split sheets","value":"4 sheet(s) cut into 11 panels"},{"label":"unplaced pages","value":"p1__2 (tier 1, 39.50922,-76.16274 +/-178m); p2__1 (tier 1, 39.50708,-76.16708 +/-196m); p2__2 (tier 1, 39.51581,-76.15895 +/-100m); p2__3 (tier 1, 39.51250,-76.16976 +/-160m); p2__4 (tier 1, 39.51480,-76.17408 +/-111m); p5__1 (tier 1, 39.50426,-76.17142 +/-198m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000010__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Aberdeen, Maryland | 1904 | sanborn03571_001 p1 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"8772.0"},{"label":"split_canvas_h","value":"10420.0"}],"created":"2026-09-22T00:10:53Z","modified":"2026-09-22T00:10:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000010__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000010","type":"ImageService3","width":2193,"height":2605},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,2605.0 1550.8,2561.1 2193.0,2605.0 2193.0,321.9 2193.0,0.0 1264.1,0.0 1262.5,721.9 895.3,727.4 905.6,1836.4 0.0,1844.9 -0.0,2605.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000010__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[293.0,2046.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.1649603,39.510684]}},{"type":"Feature","properties":{"resourceCoords":[952.0,787.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.1630048,39.5117324]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000030/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Aberdeen, Maryland | 1904 | sanborn03571_001 p3","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"}],"created":"2026-09-22T00:10:53Z","modified":"2026-09-22T00:10:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000030/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000030","type":"ImageService3","width":2181,"height":2581},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1275.5 416.6,1275.2 417.4,254.7 1342.8,243.9 1940.6,304.4 1950.5,0.0 2181.0,0.0 2181.0,2581.0 -0.0,2581.0 -0.0,1275.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000030/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[182.0,797.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.1657999,39.5093483]}},{"type":"Feature","properties":{"resourceCoords":[182.0,2424.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.1670664,39.5073181]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000040__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Aberdeen, Maryland | 1904 | sanborn03571_001 p4 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"8696.0"},{"label":"split_canvas_h","value":"4564.8"}],"created":"2026-09-22T00:10:53Z","modified":"2026-09-22T00:10:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000040__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000040","type":"ImageService3","width":2174,"height":2578},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1657.6,0.0 0.0,-0.0 -0.0,52.7 213.0,52.2 241.2,1140.4 1761.5,1135.1 1761.4,1063.4 2174.0,1062.8 2174.0,52.0 1656.4,35.5 1657.6,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000040__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[217.0,594.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.1686201,39.5103892]}},{"type":"Feature","properties":{"resourceCoords":[1528.0,594.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.1664787,39.5095932]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000040__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Aberdeen, Maryland | 1904 | sanborn03571_001 p4 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4534.8"},{"label":"split_canvas_w","value":"8696.0"},{"label":"split_canvas_h","value":"5777.2"}],"created":"2026-09-22T00:10:53Z","modified":"2026-09-22T00:10:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000040__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000040","type":"ImageService3","width":2174,"height":2578},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2174.0,2552.7 2174.0,1133.7 0.0,1141.2 0.0,1193.4 54.6,1182.0 52.0,1652.5 247.9,1651.2 246.8,1836.0 577.9,1832.0 587.2,2571.2 2174.0,2552.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000040__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1177.0,2102.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.1697345,39.5100785]}},{"type":"Feature","properties":{"resourceCoords":[52.0,1652.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.1713692,39.5089193]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000040__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Aberdeen, Maryland | 1904 | sanborn03571_001 p4 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"7328.0"},{"label":"split_canvas_w","value":"2349.2"},{"label":"split_canvas_h","value":"2984.0"}],"created":"2026-09-22T00:10:53Z","modified":"2026-09-22T00:10:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000040__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000040","type":"ImageService3","width":2174,"height":2578},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"587.3,2578.0 583.8,2298.1 387.2,2300.5 387.0,1834.3 0.0,1838.9 -0.0,2578.0 587.3,2578.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000040__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1832.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.17242966525399,39.508721134504825]}},{"type":"Feature","properties":{"resourceCoords":[587.3,1832.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.17196865358797,39.509452083602014]}},{"type":"Feature","properties":{"resourceCoords":[587.3,2578.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.17076402296375,39.50900028321116]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2578.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.17122503462977,39.50826933411397]}},{"type":"Feature","properties":{"resourceCoords":[387.2,2300.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.1713692,39.5089193]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000050__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Aberdeen, Maryland | 1904 | sanborn03571_001 p5 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"8728.0"},{"label":"split_canvas_h","value":"4912.8"}],"created":"2026-09-22T00:10:53Z","modified":"2026-09-22T00:10:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000050__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000050","type":"ImageService3","width":2182,"height":2582},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2182.0,0.0 0.0,-0.0 0.0,1214.5 2182.0,1228.2 2182.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844am:g03571001:sb000050__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1212.0,742.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.1739359,39.5122162]}},{"type":"Feature","properties":{"resourceCoords":[1212.0,1118.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.1742079,39.511747]}}]}}]}