{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn02570_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Atlantic, Iowa | 1899 | 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":"12"},{"label":"placed","value":"9"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 7, georef-snap 2"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"2 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 41.40330,-95.00694 +/-127m); p7__2 (tier 1, 41.40751,-95.00377 +/-102m); p7__4 (tier 1, 41.40799,-95.00465 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Atlantic, Iowa | 1899 | sanborn02570_004 p1 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3177.2"},{"label":"split_canvas_w","value":"3532.0"},{"label":"split_canvas_h","value":"4474.8"}],"created":"2026-09-23T08:27:04Z","modified":"2026-09-23T08:27:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"881.1,1913.0 883.0,794.3 137.9,797.4 129.4,1349.8 -0.0,1349.6 -0.0,1913.0 881.1,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[862.0,838.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.0074977,41.4039576]}},{"type":"Feature","properties":{"resourceCoords":[862.0,1354.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.0075157,41.4029506]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Atlantic, Iowa | 1899 | sanborn02570_004 p1 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"3524.4"},{"label":"split_canvas_y","value":"3485.6"},{"label":"split_canvas_w","value":"2927.6"},{"label":"split_canvas_h","value":"4166.4"}],"created":"2026-09-23T08:27:04Z","modified":"2026-09-23T08:27:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1540.0,1869.0 1548.9,1590.5 1480.4,1496.8 1473.5,871.5 886.0,871.6 881.3,1873.1 1540.0,1869.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[881.1,871.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.01600744602806,41.41090826909054]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,871.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.01418157545586,41.41088726963783]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.01422139317704,41.40893601099348]}},{"type":"Feature","properties":{"resourceCoords":[881.1,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.01604726374923,41.40895701044619]}},{"type":"Feature","properties":{"resourceCoords":[1540.0,1869.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.0144018,41.4090205]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Atlantic, Iowa | 1899 | sanborn02570_004 p2","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"}],"created":"2026-09-23T08:27:04Z","modified":"2026-09-23T08:27:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1761.2 -0.0,-0.0 251.4,0.0 251.0,124.9 1495.0,128.0 1508.0,1753.5 -0.0,1761.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[383.0,1758.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.01577,41.406013]}},{"type":"Feature","properties":{"resourceCoords":[1495.0,128.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.012983,41.408998]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Atlantic, Iowa | 1899 | sanborn02570_004 p3","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-23T08:27:04Z","modified":"2026-09-23T08:27:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1759.7 125.2,1745.7 125.3,126.0 1431.6,136.0 1431.6,0.0 1613.0,0.0 1613.0,1759.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[702.0,130.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.011558,41.408986]}},{"type":"Feature","properties":{"resourceCoords":[125.0,1211.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.012995,41.406987]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Atlantic, Iowa | 1899 | sanborn02570_004 p4","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"}],"created":"2026-09-23T08:27:04Z","modified":"2026-09-23T08:27:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913.0 -0.0,82.4 1518.8,84.2 1492.4,1906.0 -0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1506.0,621.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.0130382,41.4050041]}},{"type":"Feature","properties":{"resourceCoords":[387.0,1703.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.0158122,41.4030167]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Atlantic, Iowa | 1899 | sanborn02570_004 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T08:27:04Z","modified":"2026-09-23T08:27:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"107.7,95.8 1613.0,72.5 1613.0,1681.7 1475.7,1683.5 1479.3,1913.0 122.9,1913.0 107.7,95.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0005/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.01325731374423,41.40617912438217]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.00930235028856,41.40609270667812]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.00943803571505,41.40254968997423]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.01339299917072,41.402636107678276]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Atlantic, Iowa | 1899 | sanborn02570_004 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T08:27:04Z","modified":"2026-09-23T08:27:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913.0 -0.0,0.0 1524.2,-0.0 1505.0,1857.7 1229.0,1845.7 1135.3,1913.0 -0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0006/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.00973874830758,41.41184884739311]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.00975610892841,41.408801392575164]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.01454139215973,41.408816943495076]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.0145240315389,41.41186439831302]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0007__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Atlantic, Iowa | 1899 | sanborn02570_004 p7 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4627.2"},{"label":"split_canvas_h","value":"3818.8"}],"created":"2026-09-23T08:27:04Z","modified":"2026-09-23T08:27:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0007__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 0.0,951.2 916.1,953.9 1156.8,954.7 1155.1,0.0 0.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0007__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[68.0,700.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.01975,41.408051]}},{"type":"Feature","properties":{"resourceCoords":[1111.8,700.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.017074,41.40802]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0007__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Atlantic, Iowa | 1899 | sanborn02570_004 p7 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3804.8"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3847.2"}],"created":"2026-09-23T08:27:04Z","modified":"2026-09-23T08:27:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0007__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1913.0 1613.0,1440.5 915.7,1293.9 916.1,953.9 0.0,951.2 -0.0,1913.0 1613.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154am:g025701899:02570_1899-0007__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[927.0,1722.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.0046715,41.4079371]}},{"type":"Feature","properties":{"resourceCoords":[1475.0,1722.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.0032887,41.4079281]}}]}}]}