{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn01132_009.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Hartford, Connecticut | 1950 | 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"},{"label":"pages","value":"122"},{"label":"placed","value":"88"},{"label":"unplaced","value":"34"},{"label":"fit sources","value":"georef-snap 63, georef 34, snap:0 2, georef-street 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"10 sheet(s) cut into 23 panels"},{"label":"unplaced pages","value":"p0 (tier 4, 41.77604,-72.68091 +/-3296m); p10 (tier 2, 41.76649,-72.66856 +/-100m); p10s (tier 4, 41.77604,-72.68091 +/-3296m); p13 (tier 1, 41.76241,-72.67110 +/-124m); p14 (tier 1, 41.76870,-72.68135 +/-258m); p15 (tier 1, 41.75579,-72.62456 +/-253m); p37__1 (tier 1, 41.77501,-72.67704 +/-100m); p40 (tier 1, 41.77287,-72.67190 +/-127m); p51 (tier 2, 41.77775,-72.67562 +/-100m); p52 (tier 2, 41.77768,-72.67153 +/-313m); p5__2 (tier 2, 41.77687,-72.67844 +/-1014m); p74__2 (tier 2, 41.76610,-72.69555 +/-157m); p77__2 (tier 1, 41.76562,-72.68731 +/-131m); p77__3 (tier 1, 41.76376,-72.69349 +/-100m); p77__4 (tier 1, 41.76806,-72.68778 +/-100m); p78__2 (tier 1, 41.76829,-72.68435 +/-100m); p78__3 (tier 2, 41.76651,-72.68734 +/-517m); p80 (tier 3, 41.76106,-72.69527 +/-472m); p81__1 (tier 1, 41.76246,-72.69667 +/-100m); p81__2 (tier 1, 41.76135,-72.69727 +/-248m); p88__2 (tier 1, 41.79537,-72.66435 +/-100m); p90__2 (tier 1, 41.79130,-72.66849 +/-105m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p1","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0001","type":"ImageService3","width":1674,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"464.6,1509.3 325.2,883.9 785.7,1152.2 1020.0,743.3 1192.3,708.4 1396.3,1469.9 1337.2,1478.6 1297.9,1340.6 464.6,1509.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1249.0,1072.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.675442,41.7688377]}},{"type":"Feature","properties":{"resourceCoords":[1249.0,314.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6747989,41.770106]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0011","type":"ImageService3","width":1645,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1949.0 -0.0,495.9 860.1,476.2 860.5,506.4 1495.7,503.3 1524.9,1345.4 1491.3,1766.7 1645.0,1750.2 1645.0,1949.0 -0.0,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0011/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67564811261693,41.76539536164899]}},{"type":"Feature","properties":{"resourceCoords":[1645.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67173507230416,41.76468357973615]}},{"type":"Feature","properties":{"resourceCoords":[1645.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67285775322668,41.761201034223525]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67677079353945,41.761912816136366]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0012","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"248.2,1949.0 291.2,1529.7 273.5,183.4 1308.5,157.1 1295.3,0.0 1660.0,0.0 1660.0,1949.0 248.2,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0012/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67269304206764,41.76511054645155]}},{"type":"Feature","properties":{"resourceCoords":[1660.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.66883903200996,41.764475620644575]}},{"type":"Feature","properties":{"resourceCoords":[1660.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6698314387898,41.76107660156128]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67368544884748,41.761711527368256]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0016","type":"ImageService3","width":1659,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1659.0,676.1 1659.0,1949.0 451.3,1949.0 601.4,1056.7 -0.0,947.1 -0.0,-0.0 765.5,0.0 1374.2,124.1 1371.5,635.3 1659.0,676.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0016/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6845841274925,41.76994278687525]}},{"type":"Feature","properties":{"resourceCoords":[1659.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68059045823479,41.769922777417385]}},{"type":"Feature","properties":{"resourceCoords":[1659.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68062175492142,41.766398744455486]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68461542417913,41.76641875391335]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p17","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"14"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0017","type":"ImageService3","width":1645,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1645.0,1262.5 1494.6,1210.0 1423.3,1248.1 1414.8,1797.4 701.4,1802.7 692.3,106.7 1645.0,453.8 1645.0,1262.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1067.0,241.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6810602,41.7725752]}},{"type":"Feature","properties":{"resourceCoords":[882.0,1822.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.682275,41.7698185]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p18","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0018","type":"ImageService3","width":1659,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"47.0,1400.6 169.5,1400.8 205.3,848.2 279.5,813.2 429.3,873.1 469.3,59.1 642.4,146.9 603.7,189.9 1266.1,785.4 1547.6,889.9 1550.6,1041.1 1659.0,1138.5 1659.0,1766.7 1565.2,1766.0 1568.2,1914.1 118.9,1906.3 47.0,1400.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0018/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68087530229683,41.7722195421635]}},{"type":"Feature","properties":{"resourceCoords":[1659.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6769251541742,41.771761608742146]}},{"type":"Feature","properties":{"resourceCoords":[1659.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67764142736287,41.76827608590158]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6815915754855,41.768734019322935]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p19","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0019","type":"ImageService3","width":1659,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"58.1,0.0 155.8,363.6 270.2,518.4 225.6,339.7 1272.8,7.1 1430.8,14.9 1276.5,1014.7 1287.1,1914.6 1028.6,1949.0 -0.0,1949.0 -0.0,1279.7 111.0,1175.8 -0.0,895.2 -0.0,-0.0 58.1,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0019/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67950767432117,41.771713203267886]}},{"type":"Feature","properties":{"resourceCoords":[1659.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67642912535185,41.77360392857726]}},{"type":"Feature","properties":{"resourceCoords":[1659.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67347171250891,41.77088753024259]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67655026147824,41.76899680493322]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0002","type":"ImageService3","width":1647,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1023.9,0.0 1051.8,303.9 1280.9,308.2 1344.9,884.0 1369.7,1609.2 366.2,1479.8 384.9,689.9 207.8,676.9 774.0,77.2 693.8,0.0 1023.9,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6760299688001,41.770768251418374]}},{"type":"Feature","properties":{"resourceCoords":[1647.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67213188215749,41.77051420023335]}},{"type":"Feature","properties":{"resourceCoords":[1647.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67253214140217,41.767049482799514]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67643022804478,41.76730353398454]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p20","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0020","type":"ImageService3","width":1656,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"563.5,350.3 1156.1,319.1 1182.6,1004.0 954.3,1117.0 959.6,1227.8 617.5,1226.6 58.8,658.9 563.5,350.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0020/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67560884573369,41.77293446618421]}},{"type":"Feature","properties":{"resourceCoords":[1656.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67168681217711,41.772689621714946]}},{"type":"Feature","properties":{"resourceCoords":[1656.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6720704832654,41.76922268796465]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67599251682198,41.769467532433914]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p21","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0021/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0021","type":"ImageService3","width":1661,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6.7,1491.0 -0.0,1082.0 225.9,980.0 229.5,1503.2 6.7,1491.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0021/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[317.0,308.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6727004,41.7721861]}},{"type":"Feature","properties":{"resourceCoords":[1138.0,1802.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6708852,41.7693971]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p22","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0022/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0022","type":"ImageService3","width":1656,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"33.1,1949.0 -0.0,1738.0 -0.0,327.4 462.4,328.2 465.7,0.0 1656.0,0.0 1656.0,1949.0 1532.5,1949.0 1523.8,1843.0 1433.6,1785.5 942.4,1765.4 876.1,1766.7 867.0,1949.0 33.1,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0022/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67289708880857,41.77281589280644]}},{"type":"Feature","properties":{"resourceCoords":[1656.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.66872207045458,41.77267718953501]}},{"type":"Feature","properties":{"resourceCoords":[1656.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.66893941605433,41.76898658717927]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67311443440832,41.7691252904507]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p23","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"7"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0023","type":"ImageService3","width":1659,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1511.6 -0.0,-0.0 252.9,0.0 1461.4,259.0 1459.8,1044.5 1537.2,1045.2 1542.8,1462.0 -0.0,1511.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0023/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1066.0,213.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.696044,41.7779591]}},{"type":"Feature","properties":{"resourceCoords":[1545.0,1628.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.695898,41.7752775]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p24","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0024","type":"ImageService3","width":1656,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1509.8,626.7 1603.0,1949.0 92.1,1949.0 77.5,1069.7 -0.0,1069.5 -0.0,287.6 1544.3,320.6 1509.8,626.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0024/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69496432668932,41.778177452778515]}},{"type":"Feature","properties":{"resourceCoords":[1656.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69114801544262,41.777323478304446]}},{"type":"Feature","properties":{"resourceCoords":[1656.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69248629506855,41.77395025708384]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69630260631524,41.77480423155791]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p25","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0025/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0025","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"258.3,593.6 305.2,285.4 1265.8,343.8 1250.6,1949.0 301.6,1949.0 258.3,593.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0025/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69215951736221,41.77745466693095]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6883279592946,41.77671668797909]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68947819681887,41.773348261612966]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69330975488649,41.77408624056483]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p26","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0026/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0026","type":"ImageService3","width":1656,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1374.8,1949.0 -0.0,1949.0 -0.0,338.8 775.8,385.1 1362.2,650.4 1374.8,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0026/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68924191981209,41.77688464797973]}},{"type":"Feature","properties":{"resourceCoords":[1656.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68543325937513,41.776122180136575]}},{"type":"Feature","properties":{"resourceCoords":[1656.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68662811405625,41.772755656168506]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69043677449321,41.77351812401166]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p27","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0027/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0027","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"767.1,1764.4 245.3,1949.0 -0.0,1949.0 -0.0,1679.2 669.7,1468.6 274.9,254.3 1049.8,255.6 1044.3,945.5 1238.5,908.5 1511.0,999.7 1665.0,1097.0 1665.0,1949.0 1220.3,1949.0 920.4,1871.7 767.1,1764.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0027/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68673974264402,41.77579215125902]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68333581625342,41.774170806184024]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68586282045366,41.77117823248016]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68926674684427,41.772799577555155]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0028/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p28","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0028/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0028","type":"ImageService3","width":1667,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1667.0,1949.0 635.1,1949.0 628.7,1121.0 472.1,1022.6 196.0,930.6 -0.0,968.4 -0.0,268.8 1296.3,262.0 1394.5,1324.4 1667.0,1792.8 1667.0,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0028/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[510.0,262.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6838869,41.7738958]}},{"type":"Feature","properties":{"resourceCoords":[1296.0,262.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6822973,41.7731362]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0029/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p29","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0029/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0029","type":"ImageService3","width":1674,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"854.4,1813.0 571.5,1766.7 360.9,1791.8 379.0,1949.0 -0.0,1949.0 0.0,0.0 289.9,0.0 294.3,85.0 838.5,118.6 854.4,1813.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0029/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69730345912666,41.78272605824977]}},{"type":"Feature","properties":{"resourceCoords":[1674.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69288039589615,41.781312856831846]}},{"type":"Feature","properties":{"resourceCoords":[1674.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69507137222597,41.77744560639071]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69949443545647,41.77885880780863]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p3","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0003","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1190.5,1949.0 432.6,1949.0 385.0,548.1 1257.8,519.2 1190.5,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1229.0,1451.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6711721,41.7673876]}},{"type":"Feature","properties":{"resourceCoords":[410.0,1330.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6731172,41.7677184]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0030/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p30","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0030/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0030","type":"ImageService3","width":1661,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1138.8,1799.3 559.3,1840.9 -0.0,1775.7 -0.0,89.4 1252.0,202.5 1161.9,640.0 1138.8,1799.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0030/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69512260825492,41.78196178418863]}},{"type":"Feature","properties":{"resourceCoords":[1661.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69069522031458,41.780583944150216]}},{"type":"Feature","properties":{"resourceCoords":[1661.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69284807129218,41.776682576996926]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69727545923251,41.77806041703534]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0031/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p31","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0031/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0031","type":"ImageService3","width":1674,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"215.9,1902.5 371.7,514.8 527.1,0.0 1674.0,0.0 1674.0,246.4 1472.1,186.2 1289.3,1912.2 215.9,1902.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0031/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69321753468839,41.780799533255674]}},{"type":"Feature","properties":{"resourceCoords":[1674.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68938741833271,41.77990666195747]}},{"type":"Feature","properties":{"resourceCoords":[1674.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69077166443724,41.77655777651848]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69460178079291,41.777450647816686]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0032/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p32","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0032/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0032","type":"ImageService3","width":1661,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1383.7,361.1 1389.3,1808.7 180.5,1823.1 328.1,58.4 903.4,233.6 932.4,105.3 909.2,0.0 1661.0,0.0 1661.0,385.8 1383.7,361.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0032/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69065950572703,41.7800060120427]}},{"type":"Feature","properties":{"resourceCoords":[1661.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68692563450954,41.779067357303305]}},{"type":"Feature","properties":{"resourceCoords":[1661.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68839223114747,41.77577703121834]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69212610236497,41.77671568595773]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0033/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p33","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0033/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0033","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"868.0,1715.6 340.0,1710.0 339.9,275.5 1348.0,368.0 1462.6,1947.5 868.0,1715.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0033/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[870.0,326.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6866461,41.7782317]}},{"type":"Feature","properties":{"resourceCoords":[340.0,1710.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6888973,41.7761674]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0034/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p34","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"17"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0034/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0034","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1540.7,91.5 1548.0,1865.2 286.8,1641.0 60.6,83.0 1540.7,91.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0034/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[485.0,83.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6846332,41.777602]}},{"type":"Feature","properties":{"resourceCoords":[1550.0,1335.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6833969,41.7747809]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0035/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p35","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0035/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0035","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1418.0,254.6 1641.9,1947.0 254.7,1858.2 56.3,79.2 709.6,28.5 911.9,65.4 1418.0,254.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0035/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[199.0,1326.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6833969,41.7747809]}},{"type":"Feature","properties":{"resourceCoords":[56.0,79.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6822752,41.7768651]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0036/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p36","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0036/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0036","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1470.3,1863.0 1652.2,1893.0 1382.4,1936.4 1292.5,1898.3 272.9,1807.1 85.5,117.8 1608.0,697.3 1470.3,1863.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0036/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67965352012227,41.775688827544876]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67610828859603,41.77431271212345]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67825179472666,41.77119778121179]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68179702625291,41.77257389663322]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0037__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p37 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6664.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0037__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0037","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"75.9,170.9 1551.0,1449.6 1537.3,1477.3 1613.7,1411.9 1666.0,668.1 1666.0,0.0 188.7,0.0 163.6,120.1 75.9,170.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0037__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[324.0,389.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6796011,41.77543]}},{"type":"Feature","properties":{"resourceCoords":[1522.0,1360.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6770398,41.7734126]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0038/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p38","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0038/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0038","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1170.1,608.7 1066.5,1594.5 407.2,1577.9 325.1,543.9 372.9,406.7 628.5,0.0 1211.7,0.0 877.6,601.4 1170.1,608.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0038/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67815008543391,41.77400303280649]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67453383317942,41.77532478267381]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67247502356605,41.77214742950974]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67609127582054,41.770825679642414]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0039/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p39","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0039/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0039","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1666.0,1863.2 611.1,1880.3 659.5,1864.5 264.0,935.7 -0.0,1073.8 -0.0,-0.0 1666.0,0.0 1666.0,1863.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0039/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67547205570156,41.77562784074581]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67152870120417,41.77546715040389]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67177900202027,41.772002439410166]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67572235651767,41.77216312975209]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0004","type":"ImageService3","width":1659,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"657.3,149.2 797.0,196.8 797.6,204.4 825.9,324.9 959.2,316.8 940.1,0.0 1659.0,0.0 1659.0,1949.0 899.1,1949.0 884.5,1623.2 82.9,1534.7 105.5,170.9 657.3,149.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67108843422635,41.76971430348238]}},{"type":"Feature","properties":{"resourceCoords":[1659.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.667238171083,41.769410887349316]}},{"type":"Feature","properties":{"resourceCoords":[1659.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.66771273974062,41.76601337585227]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67156300288397,41.76631679198533]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0041/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p41","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0041/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0041","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 1382.1,0.0 1386.9,52.6 1332.2,58.0 1513.1,1840.1 -0.0,1677.2 0.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0041/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6952409683071,41.785148252067806]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69148499260803,41.78411849666117]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6930892273581,41.78081888660038]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69684520305718,41.78184864200701]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0042/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p42","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0042/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0042","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1666.0,0.0 1666.0,1949.0 466.3,1842.2 277.9,70.3 960.7,0.0 1666.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0042/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69285489680603,41.784521044584416]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68908589068472,41.78347228352227]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69071972054901,41.78016119911957]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69448872667031,41.78120996018171]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0043/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p43","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0043/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0043","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"283.8,1608.0 -0.0,1610.2 0.0,0.0 187.3,0.0 205.7,297.9 240.7,239.7 292.7,207.6 712.5,196.1 1511.0,298.1 1541.5,602.1 1510.8,1454.1 1430.2,1441.7 1418.9,1949.0 644.8,1949.0 674.0,1641.4 283.8,1608.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0043/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6901803761156,41.78978118533319]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68249289911098,41.7882450490918]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68488611565309,41.78149191686806]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69257359265771,41.783028053109454]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0044/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p44","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0044/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0044","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"800.8,1573.6 622.7,1503.0 633.5,1379.5 345.5,1367.2 440.5,698.8 1215.5,734.8 1195.3,1027.2 1238.6,1031.0 1178.7,1692.1 1167.2,1690.0 1188.2,1499.2 816.4,1458.4 822.1,1511.7 800.8,1573.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0044/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6909439718747,41.7852112099895]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68318624885298,41.783947507536624]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68515488851514,41.77713218283561]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69291261153687,41.77839588528848]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0045/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p45","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0045/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0045","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"158.5,103.3 1666.0,99.5 1666.0,1854.3 684.2,1862.2 163.9,1815.8 158.5,103.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0045/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[170.0,762.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6842434,41.7851443]}},{"type":"Feature","properties":{"resourceCoords":[1279.0,101.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6812424,41.7856919]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0046/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p46","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0046/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0046","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1786.8 -0.0,194.2 678.7,267.9 1666.0,272.8 1666.0,1626.2 1564.7,1623.9 1568.2,1819.1 -0.0,1786.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0046/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68522124758746,41.78380311148597]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6813838791054,41.782966929330556]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6826865244514,41.779595749722084]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68652389293347,41.7804319318775]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0047/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p47","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"11"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0047/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0047","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1476.5,234.3 1546.1,1703.4 -0.0,1550.9 -0.0,229.7 1476.5,234.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0047/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[250.0,230.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6856434,41.7805323]}},{"type":"Feature","properties":{"resourceCoords":[128.0,230.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6859228,41.7805972]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0048/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p48","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0048/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0048","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"460.1,1676.1 372.4,0.0 1597.4,0.0 1617.2,199.7 1278.5,200.9 1246.6,1294.8 1666.0,1307.7 1666.0,1789.2 460.1,1676.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0048/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[792.0,1706.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6829831,41.777083]}},{"type":"Feature","properties":{"resourceCoords":[1265.0,579.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6810881,41.7787432]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0049/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p49","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"16"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0049/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0049","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"333.4,1219.5 355.0,120.6 1666.0,84.1 1666.0,1805.5 1309.1,1840.1 1249.9,1914.9 768.0,1713.0 759.4,1712.2 774.8,1229.0 333.4,1219.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0049/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1323.0,1252.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6794326,41.7769338]}},{"type":"Feature","properties":{"resourceCoords":[345.0,500.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6810881,41.7787432]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0050/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p50","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0050/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0050","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"569.3,1642.2 588.5,85.9 1249.5,68.2 1269.0,147.5 1666.0,56.8 1666.0,1447.2 569.3,1642.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0050/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67906281918869,41.779178702515104]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67528349916195,41.77827986117721]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6766836567566,41.774959437745025]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68046297678333,41.77585827908292]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0053/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p53","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0053/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0053","type":"ImageService3","width":1664,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1360.7,147.8 1357.4,0.0 1664.0,0.0 1664.0,1949.0 292.8,1949.0 291.5,1867.9 236.0,1857.2 213.9,296.7 239.0,177.6 1339.5,153.9 1360.7,147.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0053/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67660676467499,41.781779253521385]}},{"type":"Feature","properties":{"resourceCoords":[1664.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6726351905279,41.78153417404361]}},{"type":"Feature","properties":{"resourceCoords":[1664.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6730174352975,41.77804079987896]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67698900944457,41.77828587935674]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0054/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p54","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0054/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0054","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"903.7,0.0 1666.0,0.0 1666.0,1949.0 442.5,1949.0 497.2,62.1 903.7,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0054/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6738167505607,41.781688739885475]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.66983266929584,41.78153000095838]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6700799534605,41.77802983201771]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67406403472536,41.778188570944806]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0055/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p55","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0055/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0055","type":"ImageService3","width":1664,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"436.2,389.2 1326.3,408.1 1337.6,1604.4 221.7,1614.1 273.0,951.0 436.2,389.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0055/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67633519795868,41.78436513320384]}},{"type":"Feature","properties":{"resourceCoords":[1664.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67233792749748,41.78415721673705]}},{"type":"Feature","properties":{"resourceCoords":[1664.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67266222329594,41.780641384588705]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67665949375714,41.7808493010555]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0056/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p56","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0056/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0056","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"116.0,1949.0 130.8,931.0 285.4,141.5 1184.8,0.0 834.6,1949.0 116.0,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0056/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67341959767104,41.78513755966238]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.66945713637357,41.78499194163471]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.66968399366529,41.78151096491459]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67364645496276,41.78165658294226]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0057/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p57","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"8"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0057/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0057","type":"ImageService3","width":1664,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"229.8,1879.0 326.8,1497.5 -0.0,1428.9 -0.0,512.6 110.7,0.0 725.4,1.4 683.4,170.9 1377.0,26.8 1115.9,1878.8 229.8,1879.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0057/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1235.0,1091.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6727574,41.7848599]}},{"type":"Feature","properties":{"resourceCoords":[327.0,1497.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6750344,41.784278]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0058/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p58","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0058/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0058","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"253.8,578.9 1120.6,270.4 1124.1,0.0 1666.0,0.0 1666.0,1949.0 1098.8,1949.0 1106.2,1384.0 240.7,1670.9 253.8,578.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0058/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1115.0,700.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6702384,41.7862162]}},{"type":"Feature","properties":{"resourceCoords":[253.0,1017.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6724013,41.7859884]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0059/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p59","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0059/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0059","type":"ImageService3","width":1664,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1124.5,1949.0 937.7,1417.0 99.9,1707.3 82.7,1949.0 32.7,1805.0 -0.0,1815.6 -0.0,1142.9 143.2,1119.5 182.8,526.3 294.5,0.0 419.2,0.0 460.9,44.8 601.7,439.5 1664.0,276.1 1664.0,1949.0 1124.5,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0059/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.66936492674184,41.792319667718104]}},{"type":"Feature","properties":{"resourceCoords":[1664.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.66606106735206,41.790749310358535]}},{"type":"Feature","properties":{"resourceCoords":[1664.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.66851070540328,41.78784371478788]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67181456479305,41.78941407214745]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p5 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"8"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6660.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0005","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1516.7,181.9 385.8,155.2 550.2,1393.9 -0.0,1466.9 -0.0,1949.0 1665.0,1949.0 1665.0,1827.9 1537.2,1816.3 1516.7,181.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[559.0,157.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6801784,41.7686528]}},{"type":"Feature","properties":{"resourceCoords":[86.0,682.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6815143,41.7678155]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0005s/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p5s","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0005s/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0005s","type":"ImageService3","width":1659,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1949.0 0.0,0.0 1659.0,0.0 1659.0,1949.0 0.0,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0005s/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68139036244435,41.76905650381133]}},{"type":"Feature","properties":{"resourceCoords":[1659.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67749433145306,41.76857107597727]}},{"type":"Feature","properties":{"resourceCoords":[1659.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67825357243649,41.76513313559854]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68214960342777,41.7656185634326]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0006","type":"ImageService3","width":1659,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1300.5,0.0 1348.3,629.4 1396.5,639.1 1349.1,663.7 1401.6,668.3 1355.3,1042.3 1339.0,1112.2 1289.6,1107.6 1249.8,1324.6 1234.7,1706.9 1265.8,1817.2 966.8,1824.8 960.0,1949.0 546.9,1949.0 544.5,1835.5 412.2,1826.6 350.7,0.0 1300.5,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0006/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67862634050314,41.7687300651092]}},{"type":"Feature","properties":{"resourceCoords":[1659.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67471509764219,41.7682541814344]}},{"type":"Feature","properties":{"resourceCoords":[1659.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67545940745795,41.76480280165936]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6793706503189,41.76527868533416]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0060/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p60","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0060/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0060","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"134.4,1336.2 702.8,0.0 1566.9,0.0 1572.4,1339.5 53.8,1898.7 134.4,1336.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0060/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67296174815962,41.789971213290286]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.66905151013195,41.789281118547336]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67012667784476,41.78584625583073]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67403691587243,41.78653635057368]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0061/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p61","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"11"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0061/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0061","type":"ImageService3","width":1672,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1538.2,1609.7 872.1,1638.3 868.0,1558.8 -0.0,1520.0 -0.0,67.4 49.9,69.9 18.4,0.0 876.5,0.0 876.0,117.2 1482.4,151.7 1538.2,1609.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0061/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1515.0,1004.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6784947,41.7890322]}},{"type":"Feature","properties":{"resourceCoords":[876.0,119.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6794557,41.7908484]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0062/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p62","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0062/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0062","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"220.3,1563.7 180.5,0.0 1286.0,0.0 1283.7,191.7 1433.8,202.5 1418.1,1586.1 821.2,1542.8 220.3,1563.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0062/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67842707257192,41.790804564663674]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6745411571196,41.79009517892934]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67564639423445,41.78668172519028]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67953230968676,41.78739111092461]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0063/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p63","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0063/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0063","type":"ImageService3","width":1672,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"329.4,1736.8 181.5,181.9 1456.5,242.2 1452.7,1789.8 329.4,1736.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0063/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[764.0,1757.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6828146,41.786049]}},{"type":"Feature","properties":{"resourceCoords":[764.0,211.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6819093,41.7887127]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0064/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p64","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0064/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0064","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1563.1,1741.0 137.8,1712.3 112.0,257.2 1382.9,170.2 1466.2,173.6 1563.1,1741.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0064/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6804568082933,41.78871512967215]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67662582551542,41.78790970242125]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67788065566204,41.78454439100057]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68171163843992,41.78534981825147]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0065/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p65","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0065/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0065","type":"ImageService3","width":1672,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,240.6 -0.0,0.0 1672.0,0.0 1672.0,160.9 1229.8,1262.1 1158.5,1699.3 539.2,1798.2 545.9,1675.3 154.3,1653.3 152.4,249.4 -0.0,240.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0065/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67540039226314,41.79033590527486]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67156875767584,41.78959784024464]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67271454389781,41.78624412449709]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67654617848511,41.78698218952731]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0066/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p66","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0066/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0066","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1151.7,1766.8 203.4,1768.3 62.5,202.4 964.7,212.7 962.1,870.9 1151.7,1766.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0066/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[578.0,209.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6760188,41.7874228]}},{"type":"Feature","properties":{"resourceCoords":[959.0,574.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6754034,41.7865971]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0067/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p67","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0067/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0067","type":"ImageService3","width":1672,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 916.8,0.0 918.6,81.8 962.2,80.8 931.0,688.8 1118.0,691.0 1068.0,705.1 1292.5,1501.1 593.1,1858.4 623.3,1949.0 -0.0,1949.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0067/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.70480281486135,41.7740539878441]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69710001346529,41.77242712007435]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69962486768812,41.7656831477492]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.70732766908418,41.76731001551895]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0068/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p68","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0068/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0068","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1666.0,1445.2 1617.2,1457.8 1666.0,1781.9 32.8,1753.6 101.7,541.5 1666.0,493.7 1666.0,1445.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0068/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.70036502662595,41.77382775686286]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69651044448595,41.77303059502045]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69775210955787,41.76964376791741]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.70160669169786,41.770440929759815]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0069/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p69","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0069/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0069","type":"ImageService3","width":1672,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1598.3,0.0 1589.0,464.7 1672.0,467.8 1672.0,1949.0 -0.0,1949.0 -0.0,-0.0 1598.3,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0069/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69950989393179,41.77628357209195]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69561891974028,41.775531593832255]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69678604905086,41.7721251926771]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.70067702324236,41.772877170936795]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0069A/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p69A","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0069A/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0069A","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1949.0 0.0,0.0 1666.0,0.0 1666.0,1949.0 0.0,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0069A/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69613541487806,41.775385147716825]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69226538654362,41.77471597237589]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69330772529361,41.77131565954466]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69717775362804,41.7719848348856]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0069B/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p69B","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0069B/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0069B","type":"ImageService3","width":1672,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1949.0 0.0,0.0 1672.0,0.0 1672.0,1949.0 0.0,1949.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0069B/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[762.0,1738.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6937147,41.7702373]}},{"type":"Feature","properties":{"resourceCoords":[974.0,148.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6973304,41.7713769]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0069C/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p69C","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0069C/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0069C","type":"ImageService3","width":1664,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1293.3,0.0 1286.8,1523.9 1198.0,1543.3 1212.1,1607.3 396.2,1825.3 152.3,464.7 113.8,471.6 118.8,606.5 -0.0,581.9 -0.0,86.2 877.3,92.9 879.6,0.0 1293.3,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0069C/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69371609356047,41.77134566312303]}},{"type":"Feature","properties":{"resourceCoords":[1664.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6898162623136,41.77077450983016]}},{"type":"Feature","properties":{"resourceCoords":[1664.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69070693125659,41.76734367962515]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69460676250345,41.76791483291802]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0069D/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p69D","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0069D/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0069D","type":"ImageService3","width":1672,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"170.8,315.4 1318.5,383.8 1323.4,1851.0 901.7,1854.3 900.0,1949.0 -0.0,1949.0 -0.0,285.6 171.0,300.9 170.8,315.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0069D/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69286079662584,41.774556166060464]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6890225587709,41.77397125241357]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68993036684302,41.770610931688495]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69376860469795,41.77119584533539]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0007","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"292.6,1642.5 256.2,1536.1 250.7,1160.8 278.1,946.1 326.8,948.0 365.4,542.5 358.0,481.6 310.3,474.7 248.2,0.0 1286.7,0.0 1415.6,761.7 1393.3,1949.0 -0.0,1949.0 -0.0,1665.8 292.6,1642.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.676179624358,41.76819789262682]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67221873868588,41.76754891677134]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67323010746355,41.76406629342615]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67719099313567,41.76471526928163]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0070/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p70","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"16"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0070/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0070","type":"ImageService3","width":1674,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"234.2,302.1 185.5,428.9 300.2,473.8 577.4,482.4 629.6,560.8 755.9,652.0 1446.9,903.9 1475.3,831.7 1434.4,565.8 1581.8,57.1 1674.0,91.3 1674.0,949.0 1289.8,1018.0 1366.5,1418.8 851.3,1430.9 854.6,1573.4 -0.0,1760.3 -0.0,286.4 234.2,302.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0070/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1080.0,1566.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6860932,41.7681537]}},{"type":"Feature","properties":{"resourceCoords":[588.0,480.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6874044,41.7723357]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0071/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p71","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0071/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0071","type":"ImageService3","width":1646,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"381.7,1586.2 -0.0,1645.7 -0.0,-0.0 1309.7,355.7 1348.8,31.1 1646.0,35.8 1646.0,1592.2 1481.8,1600.4 1494.5,1949.0 896.3,1949.0 929.2,1590.3 381.7,1586.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0071/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.70079602308182,41.770574927464025]}},{"type":"Feature","properties":{"resourceCoords":[1646.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69683738574217,41.770577152702586]}},{"type":"Feature","properties":{"resourceCoords":[1646.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69683387773905,41.76705647442935]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.7007925150787,41.76705424919079]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0072/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p72","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0072/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0072","type":"ImageService3","width":1674,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"300.6,0.0 1518.7,0.0 1502.7,88.8 1615.8,134.2 1634.8,0.0 1674.0,0.0 1674.0,1485.2 325.6,1573.8 300.6,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0072/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69755215049213,41.77052067194397]}},{"type":"Feature","properties":{"resourceCoords":[1674.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69357154288417,41.77047537695041]}},{"type":"Feature","properties":{"resourceCoords":[1674.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69364175434957,41.766994374696004]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69762236195753,41.76703966968957]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0073/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p73","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0073/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0073","type":"ImageService3","width":1657,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"478.5,132.8 966.6,77.8 1240.6,92.7 1215.7,271.4 1515.1,285.4 1504.2,1057.3 1657.0,1070.1 1503.1,1136.3 1500.5,1313.6 1413.2,1375.0 1405.1,1569.7 1497.5,1542.2 1480.1,1759.3 1657.0,1766.6 1657.0,1949.0 -0.0,1949.0 -0.0,216.1 478.5,132.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0073/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.7045272423365,41.767824906596935]}},{"type":"Feature","properties":{"resourceCoords":[1657.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69658297548581,41.76810854666191]}},{"type":"Feature","properties":{"resourceCoords":[1657.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69613882651626,41.7610896087209]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.70408309336695,41.76080596865593]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0074__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p74 [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":"6696.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0074__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0074","type":"ImageService3","width":1674,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1674.0,51.8 102.0,68.5 87.9,1949.0 440.1,1949.0 1160.4,1633.5 1309.9,1470.3 1438.8,1405.8 1439.0,1552.0 1454.8,1544.3 1674.0,1544.5 1674.0,51.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0074__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[815.0,68.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6955003,41.76774]}},{"type":"Feature","properties":{"resourceCoords":[102.0,68.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6972337,41.7676858]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0075/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p75","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0075/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0075","type":"ImageService3","width":1657,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"420.2,94.9 332.0,96.0 340.0,0.0 1179.0,0.0 1093.6,1871.3 1657.0,1897.2 1657.0,1949.0 265.8,1949.0 277.6,1759.7 377.2,1726.3 420.2,94.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0075/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6944368319919,41.76795451282241]}},{"type":"Feature","properties":{"resourceCoords":[1657.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69046388008893,41.76815931238901]}},{"type":"Feature","properties":{"resourceCoords":[1657.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69014317726186,41.76464922269874]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69411612916483,41.76444442313215]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0076/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p76","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0076/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0076","type":"ImageService3","width":1674,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1368.8,1393.4 1674.0,1375.7 1674.0,1949.0 -0.0,1949.0 0.0,0.0 1464.5,0.0 1484.2,1049.3 1360.2,1098.2 1368.8,1393.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0076/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69161354759756,41.768217798696966]}},{"type":"Feature","properties":{"resourceCoords":[1674.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6875840453657,41.76828621283988]}},{"type":"Feature","properties":{"resourceCoords":[1674.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6874772249006,41.76478792453992]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69150672713246,41.764719510397]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,112.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6880834,41.7680766]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0077__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p77 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4135.2"},{"label":"split_canvas_h","value":"6490.8"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0077__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0077","type":"ImageService3","width":1645,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"206.1,1376.2 519.6,0.0 136.2,0.0 125.8,1037.0 -0.0,1082.3 -0.0,1378.8 206.1,1376.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0077__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[133.0,96.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6880834,41.7680766]}},{"type":"Feature","properties":{"resourceCoords":[963.8,96.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6860932,41.7681537]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0078__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p78 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6672.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0078__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0078","type":"ImageService3","width":1668,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1692.4 96.4,1664.0 152.6,1949.0 264.0,1949.0 481.0,1949.0 567.4,1949.0 543.4,1701.6 829.6,1671.6 853.8,1949.0 1198.5,1949.0 1208.8,1367.4 1668.0,1201.2 1668.0,142.6 1257.2,147.7 1239.9,0.0 0.0,0.0 -0.0,52.9 -0.0,1692.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0078__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68705126917676,41.76879006678386]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68309448361383,41.768277280322074]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68389801812128,41.76482976568533]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68785480368422,41.76534255214711]}},{"type":"Feature","properties":{"resourceCoords":[442.0,84.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6860374,41.7685056]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0079/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p79","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0079/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0079","type":"ImageService3","width":1652,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"181.9,1514.5 -0.0,1576.8 -0.0,1187.9 169.3,1058.1 159.2,704.6 461.4,559.5 511.1,533.9 1228.3,191.2 1400.4,0.0 1518.5,0.0 1515.2,309.6 1652.0,252.4 1652.0,1949.0 165.2,1949.0 181.9,1514.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0079/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69745658883569,41.76525981408181]}},{"type":"Feature","properties":{"resourceCoords":[1652.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69348555080151,41.76527848149514]}},{"type":"Feature","properties":{"resourceCoords":[1652.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69345623166178,41.76175930896195]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.69742726969596,41.76174064154862]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p8","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"10"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0008","type":"ImageService3","width":1659,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1109.0,1887.0 441.1,1873.8 475.9,585.7 450.4,402.5 1228.5,303.1 1240.7,675.5 923.9,855.8 1105.1,851.9 1109.0,1887.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[466.0,872.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6733656,41.7658009]}},{"type":"Feature","properties":{"resourceCoords":[1109.0,1887.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6723801,41.7638488]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0082/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p82","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0082/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0082","type":"ImageService3","width":1668,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1370.8,650.3 1414.0,1042.1 1576.7,1804.2 794.7,1801.6 787.9,1702.5 228.6,1687.2 245.5,140.9 1405.0,160.5 1370.8,650.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0082/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68130272194567,41.786223303996586]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67361046853982,41.78457364966835]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67617731300375,41.77782404144029]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6838695664096,41.77947369576852]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0083/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p83","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0083/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0083","type":"ImageService3","width":1652,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"467.1,1773.0 102.8,1783.0 34.6,1830.8 -0.0,1949.0 -0.0,-0.0 648.4,0.0 656.0,224.8 1285.4,229.7 1322.2,247.2 1413.9,386.9 1453.1,585.6 1507.3,706.8 1482.2,705.5 1478.8,1432.3 1277.9,1422.3 1322.9,1890.3 467.1,1773.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0083/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68748773432029,41.79506468462184]}},{"type":"Feature","properties":{"resourceCoords":[1652.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67985766147771,41.79362329469892]}},{"type":"Feature","properties":{"resourceCoords":[1652.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68212248530227,41.78686434315465]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68975255814485,41.78830573307757]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0084/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p84","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0084/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0084","type":"ImageService3","width":1668,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"779.6,1688.2 747.5,1489.5 661.1,1347.6 625.1,1328.9 -0.0,1302.8 -0.0,-0.0 1547.1,0.0 1546.0,1052.5 1278.1,1014.2 1244.3,1790.4 815.1,1775.2 779.6,1688.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0084/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68340265561469,41.79829382280486]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67559073061747,41.797028559805575]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67755984124945,41.790175250366815]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68537176624666,41.7914405133661]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0085/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p85","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0085/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0085","type":"ImageService3","width":1650,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1034.5,1800.8 1036.1,1823.5 482.3,1869.0 488.4,1926.9 183.7,1932.7 129.6,1095.7 400.9,1105.0 284.6,20.7 917.6,0.0 1049.0,17.9 1072.2,1798.2 1034.5,1800.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0085/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67738018615476,41.79763351362128]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.66990081515831,41.795769508276685]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67283334619236,41.78913627299341]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.68031271718881,41.791000278338004]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0086/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p86","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0086/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0086","type":"ImageService3","width":1668,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"935.7,147.9 1633.1,296.9 769.5,1741.5 -0.0,1784.8 -0.0,10.9 935.7,147.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0086/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67263621712246,41.79642495347917]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.66501525966578,41.79460814553848]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.66784263845294,41.787922149007585]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.67546359590962,41.78973895694827]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0087__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p87 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3545.6"},{"label":"split_canvas_w","value":"6600.0"},{"label":"split_canvas_h","value":"4250.4"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0087__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0087","type":"ImageService3","width":1650,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"191.5,1751.5 785.5,1796.0 1278.0,1911.7 1349.2,1650.5 1334.0,1387.2 1650.0,1388.7 1650.0,886.4 0.0,898.8 -0.0,1786.5 191.4,1786.4 191.5,1751.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0087__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[190.0,1387.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6757555,41.7985077]}},{"type":"Feature","properties":{"resourceCoords":[1334.0,1387.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6704289,41.7976413]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0087__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p87 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6600.0"},{"label":"split_canvas_h","value":"3595.2"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0087__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0087","type":"ImageService3","width":1650,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1195.5,753.2 1113.3,0.0 -0.0,0.0 -0.0,884.8 1195.5,753.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0087__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1413.0,687.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6761213,41.7972416]}},{"type":"Feature","properties":{"resourceCoords":[738.0,337.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6782846,41.7989095]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0088__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p88 [1]","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"18"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6752.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0088__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0088","type":"ImageService3","width":1688,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"122.3,1407.0 74.7,1667.2 771.2,1780.7 1355.2,1913.7 1398.7,1859.3 1563.5,1949.0 1688.0,1949.0 1688.0,554.5 1563.5,533.5 1581.1,295.7 1380.9,339.4 1438.0,0.0 687.0,0.0 633.0,192.3 652.2,437.6 553.9,609.5 352.5,649.0 393.3,1127.2 85.7,1152.0 122.3,1407.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0088__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[86.0,1152.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6704289,41.7976413]}},{"type":"Feature","properties":{"resourceCoords":[628.0,1108.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6678359,41.7972132]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0089__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p89 [1]","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":"3185.6"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0089__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0089","type":"ImageService3","width":1650,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1788.1 190.1,1711.8 212.2,1949.0 766.0,1949.0 796.4,1949.0 783.9,52.1 783.9,0.0 0.0,-0.0 -0.0,1788.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0089__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[190.1,1712.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6622186,41.7990113]}},{"type":"Feature","properties":{"resourceCoords":[545.3,826.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6587212,41.801312]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0089__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p89 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"3135.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3464.4"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0089__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0089","type":"ImageService3","width":1650,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1101.3,793.9 941.5,354.9 786.3,418.5 788.0,673.5 860.5,879.8 1101.3,793.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0089__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1182.5,1024.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6634194,41.7956187]}},{"type":"Feature","properties":{"resourceCoords":[1182.5,1511.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6646263,41.7941714]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p9","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0009","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"320.4,1735.4 327.4,1212.0 148.5,1208.4 461.1,1044.2 453.6,411.8 1216.0,414.5 1256.7,729.2 1665.0,695.4 1665.0,1593.5 1330.7,1583.6 1339.5,1739.5 320.4,1735.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0009/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6721298,41.7678655]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6681785,41.7673057]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.66905700000001,41.7638559]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.6730083,41.7644157]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0090__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, Connecticut | 1950 | sanborn01132_009 p90 [1]","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":"5252.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T09:27:44Z","modified":"2026-09-21T09:27:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0090__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0090","type":"ImageService3","width":1688,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"345.1,-0.0 68.2,1471.0 216.4,1527.0 417.8,1835.7 1237.0,1505.0 979.2,0.0 345.1,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784hm:g3784hm_g01132195001:01132_01_1950-0090__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[323.0,124.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6656056,41.7936276]}},{"type":"Feature","properties":{"resourceCoords":[68.0,1471.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.6686767,41.7921089]}}]}}]}