{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn01152_009.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"New London, Connecticut | 1954 | key map | 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"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521954:01152_1954-0000a/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1954 | sanborn01152_009 p0a","metadata":[{"label":"streets","value":"114"},{"label":"intersections","value":"114"}],"created":"2026-09-21T21:31:12Z","modified":"2026-09-21T21:31:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521954:01152_1954-0000a/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521954:01152_1954-0000a","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 1090.0,0.0 1090.0,497.9 973.6,475.9 978.4,487.2 1007.8,580.0 990.1,603.0 966.5,619.3 964.5,622.8 993.0,620.8 1020.9,626.5 1028.7,623.7 1064.9,694.4 1090.0,776.9 1090.0,1090.5 1071.1,1078.6 1045.5,1057.3 1008.4,1029.9 966.2,1004.2 921.2,981.4 872.0,945.7 836.6,923.6 807.5,912.8 811.8,887.5 807.6,795.7 813.0,747.4 759.3,735.8 755.6,732.7 769.0,614.7 740.2,612.9 744.1,553.4 736.4,551.5 736.5,544.0 747.9,515.2 756.8,446.4 787.5,452.4 786.3,470.6 804.0,474.0 803.2,491.3 862.4,504.8 868.0,501.7 885.2,473.5 899.2,461.8 589.4,403.1 469.8,1359.0 -0.0,1359.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521954:01152_1954-0000a/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[194.2,619.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1133845,41.3561731]}},{"type":"Feature","properties":{"resourceCoords":[288.5,795.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1065505,41.3490071]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521954:01152_1954-0000b/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1954 | sanborn01152_009 p0b","metadata":[{"label":"streets","value":"39"},{"label":"intersections","value":"41"}],"created":"2026-09-21T21:31:12Z","modified":"2026-09-21T21:31:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521954:01152_1954-0000b/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521954:01152_1954-0000b","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"221.4,316.7 223.0,319.7 285.0,322.1 285.7,374.7 302.4,471.9 301.2,499.7 333.8,505.3 374.6,521.7 432.0,549.9 483.1,565.1 531.6,584.0 574.9,605.7 610.0,625.8 626.9,632.1 585.0,297.6 547.5,215.5 499.0,146.6 491.0,151.1 460.4,150.7 430.2,158.6 432.0,154.5 454.9,132.3 470.8,104.2 426.9,11.1 420.4,0.0 1090.0,0.0 1090.0,1359.0 -0.0,1359.0 0.0,-0.0 338.9,0.0 325.6,15.4 311.0,48.9 305.3,53.3 240.2,50.9 238.8,32.3 219.4,32.2 218.3,12.6 184.7,12.3 184.3,87.6 176.4,118.4 176.2,123.9 177.0,128.6 185.4,129.1 189.3,193.3 220.2,189.5 221.4,316.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521954:01152_1954-0000b/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[181.5,306.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0824297,41.3553418]}},{"type":"Feature","properties":{"resourceCoords":[298.8,499.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0759247,41.3473722]}}]}}]}