{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn01160_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Norwalk, Connecticut | 1891 | 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":"10"},{"label":"placed","value":"5"},{"label":"unplaced","value":"5"},{"label":"fit sources","value":"georef 3, georef-snap 1, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"2 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p0 (tier 1, 41.10103,-73.41951 +/-220m); p2 (tier 2, 41.12020,-73.41228 +/-100m); p4__1 (tier 2, 41.11830,-73.41257 +/-169m); p4__2 (tier 1, 41.11595,-73.41177 +/-104m); p5__2 (tier 1, 41.11845,-73.41057 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011601891:01160_1891-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwalk, Connecticut | 1891 | sanborn01160_001 p1","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"}],"created":"2026-09-23T13:59:35Z","modified":"2026-09-23T13:59:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011601891:01160_1891-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011601891:01160_1891-0001","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 1613.0,390.6 1413.6,342.8 1497.1,393.9 1054.8,1164.0 984.0,1217.9 821.6,1913.0 -0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011601891:01160_1891-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[539.0,-31.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.4136465,41.1216043]}},{"type":"Feature","properties":{"resourceCoords":[1497.0,394.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.4129078,41.1199133]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011601891:01160_1891-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwalk, Connecticut | 1891 | sanborn01160_001 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T13:59:35Z","modified":"2026-09-23T13:59:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011601891:01160_1891-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011601891:01160_1891-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1548.0,1737.2 1268.3,1705.2 950.4,1761.3 924.5,1913.0 -0.0,1913.0 -0.0,937.9 55.8,869.9 306.8,29.8 215.5,-0.0 1104.3,-0.0 1069.9,100.5 1239.8,87.3 1284.9,324.3 1244.0,745.9 1481.9,1348.2 1492.6,1651.0 1548.0,1737.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011601891:01160_1891-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.41318546201605,41.12040356490715]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.41141202991301,41.117956494970315]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.41523742980087,41.11636081676972]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.4170108619039,41.118807886706556]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011601891:01160_1891-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwalk, Connecticut | 1891 | sanborn01160_001 p5 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"},{"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":"7652.0"}],"created":"2026-09-23T13:59:35Z","modified":"2026-09-23T13:59:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011601891:01160_1891-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011601891:01160_1891-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,0.0 -0.0,1655.5 172.0,1563.5 327.4,1893.4 1613.0,1684.0 1613.0,556.4 1374.9,555.1 1140.7,745.9 999.5,721.2 920.5,500.6 901.7,448.1 902.4,345.4 904.6,0.0 -0.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011601891:01160_1891-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[172.0,1266.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.4113845,41.1185309]}},{"type":"Feature","properties":{"resourceCoords":[172.0,1563.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.411997,41.1184498]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011601891:01160_1891-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwalk, Connecticut | 1891 | sanborn01160_001 p6","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"9"}],"created":"2026-09-23T13:59:35Z","modified":"2026-09-23T13:59:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011601891:01160_1891-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011601891:01160_1891-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1770.0 1613.0,1913.0 -0.0,1913.0 -0.0,1472.3 326.5,1357.3 628.5,1342.0 554.2,1260.8 488.0,943.5 127.0,350.4 98.5,-0.0 1613.0,-0.0 1613.0,229.9 1495.0,190.9 1464.7,624.5 1458.5,876.4 1585.7,973.5 1474.6,1439.4 1369.5,1640.1 1613.0,1770.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011601891:01160_1891-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[628.0,1342.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.4149574,41.1166061]}},{"type":"Feature","properties":{"resourceCoords":[1370.0,1640.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.4150376,41.1153215]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011601891:01160_1891-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwalk, Connecticut | 1891 | sanborn01160_001 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T13:59:35Z","modified":"2026-09-23T13:59:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011601891:01160_1891-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011601891:01160_1891-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1209.3 66.2,1408.5 197.6,1365.5 243.2,1104.1 459.5,1139.6 921.2,1100.8 972.0,955.5 1613.0,782.6 1613.0,1913.0 -0.0,1913.0 -0.0,1209.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011601891:01160_1891-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.41561565816379,41.11716428476752]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.41205399048295,41.11720988800849]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.41198270306089,41.11400511407494]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.41554437074173,41.113959510833965]}}]}}]}