{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03671_007.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Adams, Massachusetts | 1950 | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"40"},{"label":"placed","value":"27"},{"label":"unplaced","value":"13"},{"label":"fit sources","value":"georef 16, georef-snap 10, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"11 sheet(s) cut into 24 panels"},{"label":"unplaced pages","value":"p13__1 (tier 1, 42.62496,-73.11457 +/-100m); p13__2 (tier 2, 42.62396,-73.11468 +/-177m); p16__2 (tier 1, 42.61773,-73.11733 +/-172m); p16__3 (tier 2, 42.61837,-73.11864 +/-720m); p1a__2 (tier 1, 42.63245,-73.11443 +/-100m); p1b__1 (tier 1, 42.60969,-73.12672 +/-127m); p1b__2 (tier 1, 42.60919,-73.12654 +/-100m); p20__1 (tier 1, 42.61679,-73.12760 +/-100m); p22__2 (tier 1, 42.61411,-73.11967 +/-100m); p24__2 (tier 4, 42.62326,-73.11838 +/-2851m); p25__1 (tier 3, 42.60954,-73.12787 +/-538m); p26 (tier 2, 42.63661,-73.11267 +/-100m); p8__2 (tier 1, 42.62414,-73.11892 +/-105m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p10","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"10"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1543.7 176.0,1776.8 61.9,1118.2 102.0,274.8 1613.0,538.2 1613.0,1543.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[934.0,1652.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.113087,42.625084]}},{"type":"Feature","properties":{"resourceCoords":[1133.0,457.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.112189,42.627272]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,631.0 35.0,627.7 4.3,260.0 218.0,234.2 233.9,91.7 304.6,16.1 476.4,45.3 543.0,0.0 1266.3,0.0 1373.5,535.5 1330.8,514.0 1061.7,1913.0 -0.0,1913.0 -0.0,631.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_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":[-73.12204509554485,42.624043498423426]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11805777744932,42.62359525200901]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11877517874463,42.62009098849595]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.12276249684015,42.62053923491037]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1087.3,57.4 1446.2,720.0 1574.6,1093.3 1598.6,1274.2 1569.5,1515.4 1613.0,1597.2 1613.0,1701.2 1463.2,1880.7 1229.1,1737.5 803.2,1831.4 11.9,1750.6 -0.0,1797.6 -0.0,699.9 42.4,708.4 95.8,25.8 1087.3,57.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_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":[-73.1189986689956,42.62500724829453]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11490704437762,42.62515033934264]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11467802785167,42.62155448053548]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11876965246965,42.62141138948737]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p14","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"158.4,1913.0 281.5,354.6 927.0,156.7 1613.0,74.0 1613.0,1913.0 158.4,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0014/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11353555170028,42.62585128642996]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.10965230570224,42.625079122882894]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11088815791013,42.62166641696099]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11477140390816,42.62243858050806]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1093.0,1913.0 429.0,1748.5 -0.0,1404.2 -0.0,-0.0 148.8,41.9 181.3,94.2 247.9,478.5 1003.6,256.3 1358.9,10.7 1613.0,51.3 1093.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0015/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.1189482038775,42.62273209100422]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11504955203218,42.62170817481778]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11668825065428,42.61828175179791]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.1205869024996,42.61930566798434]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0016__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p16 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0016__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"106.2,74.7 56.2,-0.0 725.6,1700.4 1415.5,1736.2 1489.4,1913.0 1613.0,1913.0 1613.0,1051.9 821.5,794.9 651.9,474.5 475.0,512.5 394.0,278.5 526.0,0.0 291.1,-0.0 106.2,74.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0016__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1486.0,1740.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.117023,42.617298]}},{"type":"Feature","properties":{"resourceCoords":[106.0,75.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.11542,42.621209]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"21.1,974.3 234.1,257.5 1613.0,211.3 1613.0,1913.0 868.4,1913.0 1144.6,1794.5 234.8,1040.9 21.1,974.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0017/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.1147618083097,42.6229445813126]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11090989958281,42.622075331469794]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11230107411998,42.61869000783178]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11615298284687,42.61955925767459]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0018__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p18 [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":"1863.2"},{"label":"split_canvas_h","value":"3522.0"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0018__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"92.6,505.5 0.0,505.5 0.0,880.5 63.8,880.5 355.1,876.0 465.8,396.4 465.6,57.1 78.5,88.0 92.6,505.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0018__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[78.0,408.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.1267874,42.6096986]}},{"type":"Feature","properties":{"resourceCoords":[78.0,88.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.1271148,42.6102503]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0018__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p18 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"1420.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"5031.6"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0018__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1455.6,419.9 1029.7,109.3 465.7,259.0 465.8,396.4 355.1,876.0 548.9,873.0 593.7,1913.0 626.7,1913.0 817.7,1634.3 980.0,1499.0 997.0,1467.6 1199.1,1279.8 1335.1,1052.5 1455.6,419.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0018__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1456.0,420.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.1194091,42.619328]}},{"type":"Feature","properties":{"resourceCoords":[980.0,1499.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.1217822,42.6177185]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0018__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p18 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3492.0"},{"label":"split_canvas_w","value":"2374.8"},{"label":"split_canvas_h","value":"4160.0"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0018__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"509.6,1913.0 517.9,917.8 346.4,1068.1 147.9,1373.2 0.0,1377.5 0.0,1454.5 116.8,1454.4 41.8,1913.0 509.6,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0018__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,873.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.12292262248046,42.618207592587446]}},{"type":"Feature","properties":{"resourceCoords":[593.7,873.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.12155987105375,42.617734342138434]}},{"type":"Feature","properties":{"resourceCoords":[593.7,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.12267905215802,42.615964494502826]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.12404180358473,42.61643774495184]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p19","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0019","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1430.6,1436.6 495.8,1811.3 81.2,1901.9 -0.0,1223.7 179.2,984.7 269.6,770.1 288.0,22.8 892.0,40.1 983.9,0.0 981.7,66.5 1613.0,364.8 1613.0,1516.6 1488.0,1553.1 1430.6,1436.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_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":[-73.11998080032714,42.61966413729946]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11659906885231,42.617979529504865]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11929501452397,42.61500726130772]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.1226767459988,42.61669186910231]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0001a__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p1a [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":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0001a__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0001a","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1138.2,1913.0 1188.1,1913.0 1613.0,1245.0 1613.0,0.0 1448.2,0.0 299.4,730.1 526.6,1469.5 1138.2,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0001a__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[922.0,1616.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.1127129,42.6217392]}},{"type":"Feature","properties":{"resourceCoords":[645.0,738.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.1144299,42.6250441]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1407.4,1806.8 131.4,1825.7 116.9,1913.0 -0.0,1913.0 -0.0,-0.0 1613.0,0.0 1613.0,1913.0 1409.0,1913.0 1407.4,1806.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_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":[-73.11626303812045,42.638039859678976]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11230384776194,42.63736985740508]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.1133764014122,42.63389109442461]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11733559177071,42.634561096698505]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0020__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p20 [2]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"14"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0020__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0020","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1185.4 471.5,1188.8 612.2,1490.7 609.7,1913.0 718.0,1913.0 1613.0,1913.0 1600.5,1267.1 1283.9,1296.3 1306.2,1041.1 1447.2,523.1 1414.3,477.8 1300.5,464.1 1363.0,0.0 -0.0,0.0 0.0,1185.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0020__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1104.0,455.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.1273079,42.6165234]}},{"type":"Feature","properties":{"resourceCoords":[1385.0,723.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.1268434,42.6158857]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p21","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"9"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0021/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"81.5,1771.5 69.9,1457.0 148.6,1013.8 130.2,957.4 -0.0,948.6 -0.0,-0.0 1094.6,0.0 1022.0,459.1 1488.0,459.4 1491.4,1355.4 1491.5,1380.7 1492.0,1523.9 976.4,1574.9 81.5,1771.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0021/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[642.0,1648.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.1261126,42.6146924]}},{"type":"Feature","properties":{"resourceCoords":[1492.0,1524.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.1240184,42.6142229]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0022__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p22 [1]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0022__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0022","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,0.0 1052.7,0.0 960.1,415.2 895.0,419.1 879.6,355.4 381.6,434.4 169.0,432.3 121.9,1059.6 351.1,1063.5 336.4,1913.0 768.2,1913.0 767.9,1175.7 1183.4,1175.5 1185.7,1913.0 1613.0,1913.0 1613.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0022__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[584.0,393.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.120468,42.616203]}},{"type":"Feature","properties":{"resourceCoords":[169.0,432.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.1224908,42.6166243]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p23","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0023","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,0.0 1613.0,1913.0 -0.0,1913.0 -0.0,943.1 92.2,936.6 34.0,291.1 734.2,180.0 1154.0,169.8 1154.1,25.9 1613.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0023/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[150.0,890.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.1270511,42.6136866]}},{"type":"Feature","properties":{"resourceCoords":[1150.0,1333.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.1251351,42.6122239]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0024__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p24 [1]","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":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0024__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0024","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913.0 1126.0,1913.0 1334.0,1913.0 1613.0,1913.0 1613.0,0.0 777.5,0.0 776.9,344.6 422.2,344.6 416.6,0.0 -0.0,-0.0 -0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0024__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1432.0,1819.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.1119841,42.6467998]}},{"type":"Feature","properties":{"resourceCoords":[1432.0,197.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.1112884,42.6497964]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0025__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p25 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3546.4"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0025__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0025","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1471.5,474.8 1613.0,467.8 1613.0,0.0 0.0,0.0 0.0,883.1 1485.5,886.3 1471.5,474.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0025__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1472.0,790.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.1267874,42.6096986]}},{"type":"Feature","properties":{"resourceCoords":[1472.0,474.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.1271148,42.6102503]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1524.9,154.0 1613.0,154.6 1613.0,1913.0 -0.0,1913.0 -0.0,0.0 124.9,0.0 124.0,145.8 240.2,146.5 255.2,59.8 1523.5,48.4 1524.9,154.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11756211646158,42.63487868901616]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11357339290463,42.6342219714126]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11462462645743,42.63071707983993]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11861335001439,42.631373797443494]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p4 [1]","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":"3252.8"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"811.1,0.0 0.0,0.0 0.0,1913.0 813.2,1913.0 811.1,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[135.0,982.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.1143009,42.6324985]}},{"type":"Feature","properties":{"resourceCoords":[135.0,51.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.1138214,42.6341697]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p4 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"3244.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3207.6"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0004__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1913.0 1613.0,0.0 811.1,0.0 813.0,1705.8 1613.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1048.1,1176.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.11043,42.631541]}},{"type":"Feature","properties":{"resourceCoords":[1048.1,1761.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.110899,42.630419]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p5","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"6"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,352.2 783.8,347.9 780.9,0.0 1613.0,0.0 1613.0,74.3 1511.0,66.8 1423.9,1311.8 1066.8,1286.7 1066.8,1660.2 -0.0,1820.2 -0.0,352.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1044.0,148.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.113853,42.630977]}},{"type":"Feature","properties":{"resourceCoords":[1072.0,1823.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.114751,42.627863]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p6","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"12"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"45.1,1800.4 -0.0,1261.1 361.4,1259.7 356.6,0.0 1083.4,0.0 1083.5,59.0 1613.0,52.9 1613.0,1802.9 45.1,1800.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[356.0,37.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.112661,42.630862]}},{"type":"Feature","properties":{"resourceCoords":[1092.0,1260.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.111784,42.628254]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1298.0,1458.2 1312.2,1827.8 1277.0,1829.6 1273.2,1913.0 -0.0,1913.0 -0.0,-0.0 1427.3,0.0 1386.5,446.2 1613.0,631.5 1613.0,1227.1 1535.6,1299.9 1513.2,1441.9 1298.0,1458.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_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":[-73.12496735644758,42.62649842930289]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.12096739374002,42.62618411621544]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.12147046000051,42.62266888075096]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.12547042270808,42.62298319383841]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0008__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p8 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0008__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"235.9,1210.5 288.7,1791.7 454.4,1813.5 517.2,1766.2 1272.2,1709.7 1153.0,1059.4 1107.7,1048.0 1100.6,989.0 1062.5,971.5 1089.2,894.4 989.8,0.0 570.8,0.0 570.9,816.8 0.0,822.6 -0.0,1049.2 235.9,1210.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0008__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[285.0,1252.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.121031,42.624928]}},{"type":"Feature","properties":{"resourceCoords":[825.0,1729.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.1199104,42.6238487]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Adams, Massachusetts | 1950 | sanborn03671_007 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T17:30:23Z","modified":"2026-09-23T17:30:23Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_1950-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1680.8 -0.0,1668.1 -0.0,-0.0 1538.4,0.0 1432.1,1019.7 1513.1,1694.2 81.2,1846.6 -0.0,1825.2 -0.0,1680.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036711950:03671_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":[-73.11851340100594,42.62838357742344]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11448385876432,42.62815594765762]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.1148481977371,42.624614830136544]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-73.11887773997873,42.62484245990237]}}]}}]}