{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03735_007.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Gloucester, Massachusetts | 1949 | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"94"},{"label":"placed","value":"59"},{"label":"unplaced","value":"35"},{"label":"fit sources","value":"georef 39, georef-snap 18, snap:0 3, snap:1 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"23 sheet(s) cut into 51 panels"},{"label":"unplaced pages","value":"p0 (tier 4, 42.61366,-70.66151 +/-6127m); p15__1 (tier 1, 42.61478,-70.66858 +/-100m); p15__2 (tier 2, 42.61368,-70.66980 +/-189m); p23__2 (tier 1, 42.62379,-70.66972 +/-100m); p29__2 (tier 1, 42.61899,-70.64946 +/-105m); p3 (tier 1, 42.60936,-70.66463 +/-253m); p30__2 (tier 1, 42.61672,-70.64563 +/-100m); p33__1 (tier 1, 42.61568,-70.65715 +/-207m); p34__1 (tier 1, 42.60454,-70.65775 +/-100m); p37__2 (tier 1, 42.60503,-70.65130 +/-112m); p4 (tier 3, 42.64083,-70.64125 +/-543m); p43__3 (tier 1, 42.60055,-70.63721 +/-100m); p44__2 (tier 1, 42.63108,-70.68785 +/-279m); p45__2 (tier 3, 42.58734,-70.66295 +/-543m); p46__2 (tier 4, 42.61366,-70.66151 +/-6127m); p46__3 (tier 4, 42.61366,-70.66151 +/-6127m); p47 (tier 3, 42.62327,-70.68353 +/-543m); p48__2 (tier 1, 42.62783,-70.67985 +/-208m); p49__2 (tier 1, 42.57744,-70.71422 +/-100m); p50__2 (tier 4, 42.61366,-70.66151 +/-6127m); p53__3 (tier 1, 42.60673,-70.68102 +/-144m); p54 (tier 4, 42.61366,-70.66151 +/-6127m); p57__1 (tier 1, 42.62055,-70.67328 +/-252m); p57__2 (tier 4, 42.61366,-70.66151 +/-6127m); p58 (tier 4, 42.61366,-70.66151 +/-6127m); p59__1 (tier 2, 42.65523,-70.61849 +/-100m); p59__2 (tier 1, 42.65740,-70.61782 +/-100m); p59__3 (tier 1, 42.65861,-70.67030 +/-100m); p60 (tier 4, 42.61366,-70.66151 +/-6127m); p61__1 (tier 4, 42.61366,-70.66151 +/-6127m); p61__2 (tier 4, 42.61366,-70.66151 +/-6127m); p62__1 (tier 1, 42.63656,-70.68142 +/-202m); p63__2 (tier 1, 42.62312,-70.62421 +/-102m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p1","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"15"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0001","type":"ImageService3","width":1682,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"139.6,115.4 128.9,0.0 1682.0,0.0 1682.0,572.2 1626.5,587.0 1639.9,780.7 1682.0,817.7 1682.0,1857.3 1599.3,1860.5 1630.5,1979.0 -0.0,1979.0 -0.0,83.6 139.6,115.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1126.0,1054.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6709017,42.6116322]}},{"type":"Feature","properties":{"resourceCoords":[749.0,123.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6718511,42.6132637]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0010","type":"ImageService3","width":1668,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"937.7,878.2 886.6,861.4 313.6,1028.5 345.7,1460.9 169.7,1507.1 126.0,1071.2 176.9,1063.8 88.9,653.2 427.6,521.6 639.1,0.0 1153.2,0.0 1079.4,30.5 1539.8,1144.6 1262.5,1178.1 1337.0,1415.5 1338.0,1674.8 1294.5,1870.0 557.8,1685.1 778.5,1529.0 937.7,878.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0010/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.66098922476505,42.61761849924177]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65736134656211,42.61889541357427]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.6553170749708,42.61570552610685]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65894495317373,42.61442861177435]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0011","type":"ImageService3","width":1668,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1293.6,1602.4 1227.5,1979.0 -0.0,1979.0 0.0,-0.0 777.2,-0.0 814.0,323.0 932.3,308.7 998.4,133.2 1546.6,78.2 1601.8,1599.2 1293.6,1602.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0011/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.6554354687521,42.62099551803678]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65247851454956,42.619012625992745]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.655653125028,42.61641274949047]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65861007923054,42.618395641534505]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0012","type":"ImageService3","width":1678,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"100.7,295.6 658.6,240.1 588.1,-0.0 1060.1,-0.0 1060.1,-0.0 1065.0,-0.0 1377.0,345.6 1500.4,305.6 1647.1,1600.1 1678.0,1596.6 1678.0,1979.0 1350.2,1979.0 1370.2,1684.0 124.7,1599.2 100.7,295.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0012/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.6527848030723,42.61935344270426]}},{"type":"Feature","properties":{"resourceCoords":[1678.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.64978079799265,42.61742198802442]}},{"type":"Feature","properties":{"resourceCoords":[1678.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.6528545491583,42.614796414684584]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65585855423795,42.616727869364425]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0013","type":"ImageService3","width":1668,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1668.0,1045.0 1668.0,1273.3 968.8,1472.8 898.9,1979.0 444.4,1979.0 -0.0,1523.2 0.0,0.0 1182.0,0.0 1279.2,310.2 1307.5,300.2 1668.0,1045.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0013/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.67920254792828,42.6169662802545]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.671466530066,42.61787626041165]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.67000976123296,42.61107392189627]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.67774577909525,42.610163941739124]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p14","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"21"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0014","type":"ImageService3","width":1677,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1525.1,0.0 1206.8,176.6 1414.8,595.8 1583.6,1297.2 1602.4,1469.1 1556.1,1864.8 1360.7,1955.8 1377.6,1979.0 -0.0,1979.0 0.0,0.0 1525.1,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1006.0,1739.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6698858,42.614854]}},{"type":"Feature","properties":{"resourceCoords":[312.0,166.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6723463,42.6173367]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p16","metadata":[{"label":"streets","value":"16"},{"label":"intersections","value":"19"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0016","type":"ImageService3","width":1677,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"187.5,650.5 272.8,209.0 1335.2,225.0 1436.5,315.1 1415.0,933.5 1604.5,1756.8 1614.1,1979.0 603.0,1979.0 608.5,1793.0 -0.0,1777.3 -0.0,716.7 187.5,650.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[211.0,1163.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6680848,42.6139795]}},{"type":"Feature","properties":{"resourceCoords":[1335.0,225.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6661621,42.6161919]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0017","type":"ImageService3","width":1668,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"197.6,1028.5 132.7,408.8 -0.0,334.9 0.0,0.0 1200.7,0.0 1509.9,1129.0 1568.1,1629.3 1553.5,1814.9 1668.0,1818.7 1668.0,1979.0 525.8,1979.0 197.6,1028.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0017/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.66634026067449,42.61677084924758]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.66238701327467,42.61727133706509]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.66158577592537,42.61379528866465]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.6655390233252,42.613294800847136]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p18","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"10"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0018","type":"ImageService3","width":1672,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"521.7,1662.1 55.6,1394.7 211.4,1078.4 -0.0,969.4 -0.0,680.8 717.1,171.8 611.7,-0.0 1301.7,-0.0 1261.2,104.2 1672.0,494.5 1672.0,859.2 1554.7,845.9 1214.1,1923.2 521.7,1662.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0018/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[897.0,1815.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6630574,42.6163372]}},{"type":"Feature","properties":{"resourceCoords":[211.0,1078.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.663048,42.6181207]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p19","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0019","type":"ImageService3","width":1668,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 527.5,0.0 527.5,0.0 1668.0,0.0 1668.0,1979.0 1352.1,1884.8 466.7,1887.0 465.3,1667.5 -0.0,1553.5 0.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0019/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1229.0,1115.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6734923,42.6217549]}},{"type":"Feature","properties":{"resourceCoords":[475.0,1115.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.674874,42.6209013]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0002","type":"ImageService3","width":1662,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"313.6,189.3 349.9,0.0 1662.0,0.0 1662.0,1979.0 -0.0,1979.0 -0.0,1215.0 80.7,1233.2 343.8,239.5 313.6,189.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.67053067325429,42.61230353788226]}},{"type":"Feature","properties":{"resourceCoords":[1662.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.6666968831881,42.61311744472354]}},{"type":"Feature","properties":{"resourceCoords":[1662.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.66538927635558,42.60973402875251]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.66922306642178,42.60892012191123]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p20","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"15"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0020","type":"ImageService3","width":1661,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"509.8,0.0 562.7,210.2 1405.3,0.0 1661.0,0.0 1661.0,903.5 1661.0,903.5 1661.0,1856.2 177.1,1486.2 58.2,1965.0 -0.0,1967.5 -0.0,-0.0 509.8,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[441.0,1723.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6723463,42.6173367]}},{"type":"Feature","properties":{"resourceCoords":[1287.0,28.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6723235,42.6207134]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p21","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0021/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0021","type":"ImageService3","width":1668,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"65.8,477.9 406.2,345.3 362.5,0.0 1070.2,0.0 1070.3,39.8 1140.5,4.4 1409.6,143.7 1409.0,0.0 1668.0,0.0 1668.0,1537.6 1405.6,1491.0 1364.6,1822.2 294.9,1763.8 217.8,922.7 65.8,477.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0021/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[502.0,297.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.669373,42.6182236]}},{"type":"Feature","properties":{"resourceCoords":[1431.0,192.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6673478,42.6189608]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p22","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0022/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0022","type":"ImageService3","width":1668,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"273.7,1687.3 262.6,148.1 1.9,148.8 0.2,0.0 1668.0,0.0 1668.0,1090.2 1555.4,1147.8 1556.0,1385.0 1202.5,1390.9 1200.0,1817.8 1118.0,1838.0 273.7,1687.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0022/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.66767878248902,42.6195161883491]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.66390661975929,42.62050848459472]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.66231796257829,42.617191823674304]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.66609012530802,42.616199527428684]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0023__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p23 [1]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"23"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6616.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0023__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0023","type":"ImageService3","width":1654,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1979.0 1294.0,1979.0 1495.0,1979.0 1654.0,1979.0 1654.0,1432.6 1532.5,1184.9 1654.0,1184.1 1654.0,-0.0 535.4,0.0 375.7,554.0 0.0,445.1 -0.0,1979.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0023__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1206.0,1928.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6706163,42.6215937]}},{"type":"Feature","properties":{"resourceCoords":[1506.0,452.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6670122,42.6219753]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p24","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0024","type":"ImageService3","width":1668,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1439.5,1979.0 192.3,1979.0 192.9,1888.8 67.7,1641.0 1544.7,1641.0 1404.5,1908.8 1439.5,1979.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0024/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[68.0,1641.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6686633,42.6215017]}},{"type":"Feature","properties":{"resourceCoords":[1545.0,1641.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6674358,42.6190278]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p25","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"12"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0025/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0025","type":"ImageService3","width":1668,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1572.7,1534.8 1668.0,1534.5 1668.0,1864.2 805.1,1922.1 770.2,1979.0 674.2,1979.0 167.2,1136.9 -0.0,1238.6 0.0,0.0 1668.0,0.0 1668.0,860.0 1570.5,857.5 1572.7,1534.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0025/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[737.0,1195.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6625686,42.6201995]}},{"type":"Feature","properties":{"resourceCoords":[1568.0,1390.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6606708,42.619553]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p26","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0026/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0026","type":"ImageService3","width":1670,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"101.2,568.8 198.3,573.3 212.0,0.0 1670.0,0.0 1670.0,529.5 1066.6,1503.0 746.8,1733.2 179.3,1370.2 182.4,1240.3 87.6,1238.7 101.2,568.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0026/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.66039697375439,42.62154443857194]}},{"type":"Feature","properties":{"resourceCoords":[1670.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65635766104441,42.62099776278949]}},{"type":"Feature","properties":{"resourceCoords":[1670.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65723185117027,42.617450526974544]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.66127116388024,42.61799720275699]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p27","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0027/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0027","type":"ImageService3","width":1668,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,742.5 155.8,757.0 167.1,205.1 0.0,119.4 -0.0,0.0 1668.0,0.0 1668.0,1979.0 1458.9,1979.0 1238.9,1848.8 302.2,1662.0 197.8,1723.3 244.8,1251.7 0.0,1299.4 0.0,742.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0027/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[167.0,446.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6534097,42.6193876]}},{"type":"Feature","properties":{"resourceCoords":[55.0,748.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.652978,42.6189186]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0028__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p28 [1]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"13"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6680.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0028__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0028","type":"ImageService3","width":1670,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,0.0 -0.0,973.0 75.5,968.2 114.5,1580.9 -0.0,1588.2 -0.0,1979.0 462.4,1979.0 765.4,1800.9 850.5,1979.0 1670.0,1979.0 1670.0,796.4 1065.9,789.4 1055.4,0.0 -0.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0028__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1550.0,1180.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6461908,42.6191511]}},{"type":"Feature","properties":{"resourceCoords":[1139.0,1038.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6462856,42.6199224]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0028__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p28 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"4221.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2458.4"},{"label":"split_canvas_h","value":"3185.6"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0028__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0028","type":"ImageService3","width":1670,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1055.4,0.0 1065.9,789.4 1670.0,796.4 1670.0,0.0 1055.4,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0028__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1055.4,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.64939358333001,42.622446191180934]}},{"type":"Feature","properties":{"resourceCoords":[1670.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.64807786458708,42.622955503984535]}},{"type":"Feature","properties":{"resourceCoords":[1670.0,796.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.64718169849856,42.62170283866654]}},{"type":"Feature","properties":{"resourceCoords":[1055.4,796.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.64849741724149,42.62119352586294]}},{"type":"Feature","properties":{"resourceCoords":[1310.2,408.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6483887,42.6220153]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0029__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p29 [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":"6664.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0029__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0029","type":"ImageService3","width":1666,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1440.5,1832.3 1420.8,1697.4 1447.0,1507.5 1323.5,1505.9 1362.0,1209.6 830.6,1205.7 847.7,544.7 1325.3,544.9 1126.4,0.0 862.6,98.5 47.4,763.7 -0.0,1059.0 -0.0,1406.4 177.2,1497.5 834.0,1507.5 1252.7,1979.0 1434.8,1979.0 1495.2,1913.1 1440.5,1832.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0029__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[834.0,1508.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6490346,42.6172432]}},{"type":"Feature","properties":{"resourceCoords":[1447.0,1508.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6477067,42.6173125]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0030__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p30 [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":"6680.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0030__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0030","type":"ImageService3","width":1670,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1451.0 25.2,1718.6 -0.0,1979.0 466.4,1979.0 530.6,1905.6 731.5,1979.0 975.0,1979.0 1273.0,1979.0 1670.0,1979.0 1670.0,1220.9 1645.0,1164.6 1670.0,1153.1 1670.0,973.4 1044.9,977.9 1046.5,528.5 1165.0,442.4 1670.0,443.2 1670.0,0.0 1024.3,0.0 18.6,522.7 -0.0,486.9 -0.0,1066.2 99.0,1054.6 97.8,1209.2 127.6,1315.1 179.8,1374.0 167.4,1414.6 -0.0,1451.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0030__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[607.0,95.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6461908,42.6191511]}},{"type":"Feature","properties":{"resourceCoords":[99.0,1055.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6477067,42.6173125]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0031/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p31","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0031/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0031","type":"ImageService3","width":1666,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1063.7,1389.1 1333.6,1835.8 829.5,1744.7 828.5,1765.2 0.0,1932.2 -0.0,0.0 1283.6,0.0 1656.0,520.3 1560.9,1079.6 1566.1,1086.1 1326.1,1263.8 1063.7,1389.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0031/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65232127494997,42.615334664539894]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65005274748535,42.61778291211834]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.64612860443802,42.61578582900679]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.64839713190264,42.61333758142835]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0032__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p32 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6688.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0032__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0032","type":"ImageService3","width":1672,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1672.0,1580.9 1279.1,1583.2 1290.8,631.4 1672.0,637.3 1672.0,167.3 1431.1,0.0 1318.2,0.0 1228.9,183.3 624.6,145.6 669.4,649.6 -0.0,569.4 -0.0,1817.3 1057.0,1676.3 844.4,1979.0 1672.0,1979.0 1672.0,1580.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0032__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":[-70.64919698818653,42.61497731652591]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.64560511029806,42.61358303874555]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.64783179920384,42.610432169603335]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65142367709231,42.61182644738369]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0032__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p32 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"5116.4"},{"label":"split_canvas_y","value":"2525.6"},{"label":"split_canvas_w","value":"1571.6"},{"label":"split_canvas_h","value":"3807.2"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0032__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0032","type":"ImageService3","width":1672,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1499.7,1495.5 1505.2,1581.9 1506.5,1581.9 1541.0,1545.0 1672.0,1526.7 1662.3,637.1 1624.0,636.5 1290.2,681.6 1281.5,1386.1 1499.7,1495.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0032__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1566.0,1506.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.646232,42.6139406]}},{"type":"Feature","properties":{"resourceCoords":[320.4,981.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6485316,42.6127224]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0033__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p33 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"2"},{"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":"3788.0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0033__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0033","type":"ImageService3","width":1666,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1218.5,861.9 1523.4,814.6 1512.7,946.8 1666.0,946.7 1666.0,0.0 0.0,0.0 -0.0,534.1 946.8,611.0 956.5,840.6 1218.5,861.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0033__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1233.0,422.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6582544,42.6067259]}},{"type":"Feature","properties":{"resourceCoords":[939.0,422.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6587931,42.6064358]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0034__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p34 [2]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6688.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0034__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0034","type":"ImageService3","width":1672,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1144.3,213.8 1117.8,0.0 -0.0,-0.0 0.0,1471.6 961.6,1476.5 957.3,1979.0 1149.0,1979.0 1672.0,1979.0 1672.0,146.6 1390.7,213.8 1144.3,213.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0034__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[795.0,972.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.657959,42.6044119]}},{"type":"Feature","properties":{"resourceCoords":[1330.0,1271.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.656478,42.6044562]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0035/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p35","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0035/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0035","type":"ImageService3","width":1662,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"505.5,941.1 555.5,969.9 507.2,543.8 0.0,602.3 -0.0,0.0 1662.0,0.0 1662.0,1175.3 1461.0,1979.0 0.0,1979.0 0.0,1158.8 275.3,995.2 505.5,941.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0035/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.6577331987163,42.59807676788667]}},{"type":"Feature","properties":{"resourceCoords":[1662.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.6578044689436,42.600959760691964]}},{"type":"Feature","properties":{"resourceCoords":[1662.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65317355211724,42.6010226699077]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65310228188994,42.5981396771024]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0036/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p36","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0036/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0036","type":"ImageService3","width":1672,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1032.8,0.0 1672.0,0.0 1672.0,1979.0 1586.5,1979.0 1569.5,1775.4 787.9,1647.9 -0.0,1713.8 -0.0,694.0 611.4,264.2 838.4,335.1 1032.8,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0036/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65671696518591,42.60407497275036]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65263148630292,42.6038774830358]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65294682635609,42.600292993161766]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65703230523907,42.600490482876324]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0037__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p37 [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":"6676.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0037__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0037","type":"ImageService3","width":1669,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 -0.0,1612.0 284.7,1828.3 170.3,1979.0 410.9,1979.0 495.9,1594.4 920.3,1460.9 1061.7,1141.0 1669.0,1141.2 1669.0,0.0 1274.3,0.0 1108.0,152.9 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0037__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[641.0,624.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.653015,42.6054704]}},{"type":"Feature","properties":{"resourceCoords":[433.0,1866.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6545731,42.6035422]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0038/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p38","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0038/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0038","type":"ImageService3","width":1672,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1672.0,1602.2 1655.5,1802.4 1420.8,1758.1 1406.6,1979.0 0.0,1979.0 0.0,1742.1 237.2,1708.7 178.8,1308.8 0.0,1162.1 0.0,-0.0 1672.0,0.0 1672.0,527.2 1531.6,1569.1 1672.0,1602.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0038/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65394090864196,42.60695063347599]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65200309876383,42.60950145545867]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.64792977492185,42.60780140653565]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.64986758479998,42.60525058455297]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0039/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p39","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0039/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0039","type":"ImageService3","width":1669,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1669.0,319.0 1669.0,1702.8 1209.2,1544.2 701.3,1460.7 616.0,1979.0 -0.0,1979.0 -0.0,-0.0 1572.2,0.0 1320.7,272.5 1669.0,319.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0039/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65238579147636,42.6123932210048]}},{"type":"Feature","properties":{"resourceCoords":[1669.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.64859214820297,42.611367406515406]}},{"type":"Feature","properties":{"resourceCoords":[1669.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65023326932733,42.608033421842094]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65402691260073,42.60905923633149]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0040/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p40","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"6"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0040/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0040","type":"ImageService3","width":1672,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"262.8,941.9 97.0,915.0 117.7,371.5 1478.0,49.1 1523.6,527.7 1672.0,512.8 1672.0,1979.0 0.0,1979.0 0.0,1107.9 233.6,1135.0 262.8,941.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0040/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1129.0,765.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6478755,42.6096166]}},{"type":"Feature","properties":{"resourceCoords":[97.0,915.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6489362,42.6079394]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0041__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p41 [1]","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"11"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6676.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0041__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0041","type":"ImageService3","width":1669,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1979.0 1077.2,1979.0 1142.9,1691.8 1351.8,1739.5 1343.1,1820.0 1669.0,1855.2 1668.5,1555.1 1181.1,1552.7 1152.2,1552.6 1181.3,1466.0 1295.0,1127.4 1667.7,1126.6 1665.8,0.0 807.1,0.0 760.8,234.7 745.9,238.2 753.9,273.1 672.1,683.6 161.9,583.0 301.7,667.7 95.9,1007.1 157.9,1179.1 -0.0,1393.2 -0.0,1979.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0041__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1437.0,1883.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6391571,42.611426]}},{"type":"Feature","properties":{"resourceCoords":[388.0,312.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.645243,42.6164802]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0041__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p41 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"4608.8"},{"label":"split_canvas_y","value":"4506.4"},{"label":"split_canvas_w","value":"2067.2"},{"label":"split_canvas_h","value":"1714.0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0041__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0041","type":"ImageService3","width":1669,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1251.2,1432.4 1669.0,1487.5 1669.0,1126.6 1369.0,1127.2 1251.2,1432.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0041__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1624.0,1506.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6463021,42.6140678]}},{"type":"Feature","properties":{"resourceCoords":[1251.2,1432.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6477322,42.614793]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0042/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p42","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0042/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0042","type":"ImageService3","width":1672,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"982.3,1979.0 333.6,1979.0 126.5,115.9 -0.0,129.5 -0.0,-0.0 1672.0,0.0 1672.0,1979.0 982.3,1979.0 982.3,1979.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0042/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.63991896072669,42.61860360412149]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.63193919314489,42.61877154725926]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.63167097455751,42.61177179488221]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.63965074213931,42.61160385174444]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0043__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p43 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6676.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0043__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0043","type":"ImageService3","width":1669,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1669.0,1979.0 1669.0,0.0 986.4,0.0 243.5,87.4 233.2,0.0 -0.0,-0.0 0.0,1237.9 553.9,935.6 790.7,1162.9 829.7,1349.6 848.3,1979.0 1669.0,1979.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0043__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[358.0,132.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6391571,42.611426]}},{"type":"Feature","properties":{"resourceCoords":[1530.0,370.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6340419,42.6103051]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0043__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p43 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3742.4"},{"label":"split_canvas_w","value":"3393.2"},{"label":"split_canvas_h","value":"4173.6"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0043__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0043","type":"ImageService3","width":1669,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1572.0 562.4,1580.4 564.5,1979.0 642.0,1979.0 805.0,1979.0 848.3,1979.0 829.7,1349.6 790.7,1162.9 553.9,935.6 0.0,1237.9 0.0,1572.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0043__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,935.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.63695724367207,42.60176738003136]}},{"type":"Feature","properties":{"resourceCoords":[848.3,935.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.63531457022057,42.60086515468092]}},{"type":"Feature","properties":{"resourceCoords":[848.3,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.63682460041655,42.59937754181866]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.63846727386805,42.600279767169106]}},{"type":"Feature","properties":{"resourceCoords":[783.3,1401.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6361145,42.6002703]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0044__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p44 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6688.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0044__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0044","type":"ImageService3","width":1672,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"214.3,223.8 163.6,109.8 152.9,18.1 166.2,0.0 -0.0,-0.0 -0.0,1979.0 553.7,1979.0 558.2,1521.0 829.6,1166.3 1672.0,1159.6 1672.0,0.0 559.9,0.0 530.2,259.9 214.3,223.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0044__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[608.0,658.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6523174,42.5964309]}},{"type":"Feature","properties":{"resourceCoords":[164.0,1153.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6545862,42.5939911]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0045__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p45 [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":"6676.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0045__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0045","type":"ImageService3","width":1669,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1669.0,0.0 -0.0,0.0 -0.0,1979.0 356.0,1979.0 514.0,1979.0 867.0,1979.0 823.8,1075.2 1078.4,767.7 1411.9,772.5 1669.0,997.1 1669.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0045__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[634.0,1506.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6628629,42.583624]}},{"type":"Feature","properties":{"resourceCoords":[338.0,-163.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6607416,42.589008]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0046__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p46 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6688.0"},{"label":"split_canvas_h","value":"4538.0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0046__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0046","type":"ImageService3","width":1672,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 0.0,1122.5 470.3,1125.7 1672.0,1134.5 1672.0,0.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0046__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":[-70.67943649629527,42.619405258138656]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.6753943850588,42.61940393500009]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,1134.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.67539560502576,42.61738733815972]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1134.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.67943771626223,42.617388661298286]}},{"type":"Feature","properties":{"resourceCoords":[1064.0,202.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6768636,42.6190455]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0048__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p48 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4958.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0048__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0048","type":"ImageService3","width":1672,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 -0.0,1979.0 710.1,1979.0 707.3,1230.2 759.2,1087.4 927.3,1059.4 980.7,886.6 1056.2,642.6 1239.5,0.0 0.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0048__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1243.5,83.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6751426,42.6347288]}},{"type":"Feature","properties":{"resourceCoords":[701.7,628.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6776839,42.6327364]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0049__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p49 [1]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"17"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6708.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0049__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0049","type":"ImageService3","width":1677,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1677.0,403.7 1165.0,404.0 1162.6,0.0 -0.0,0.0 -0.0,1979.0 431.1,1979.0 440.4,1845.3 1607.2,1895.7 1605.0,1101.5 1677.0,1100.2 1677.0,403.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0049__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[483.0,1366.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.7148767,42.5769884]}},{"type":"Feature","properties":{"resourceCoords":[1605.0,1101.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.7121158,42.5774147]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0005","type":"ImageService3","width":1668,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"186.9,330.8 1310.4,223.2 1295.3,65.5 1531.9,50.8 1534.4,0.0 1582.6,0.0 1578.0,440.7 1186.8,502.4 1198.7,699.4 1235.0,759.4 1024.4,832.0 1126.7,1480.7 1668.0,1395.3 1668.0,1979.0 -0.0,1979.0 -0.0,442.6 210.9,393.0 186.9,330.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0005/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.66480591375874,42.61402271183067]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.66075781540435,42.61424417432756]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.6604032899764,42.61068455665933]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.66445138833079,42.61046309416244]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0050__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p50 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6688.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0050__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0050","type":"ImageService3","width":1672,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1672.0,-0.0 1274.0,0.0 1279.2,415.5 1012.4,414.0 1005.1,0.0 -0.0,0.0 -0.0,1795.4 820.3,1745.8 825.5,1812.4 1560.8,1765.9 1538.5,1178.2 1478.8,816.9 1672.0,775.8 1672.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0050__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[792.0,1389.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.7109957,42.5774094]}},{"type":"Feature","properties":{"resourceCoords":[209.0,867.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.7094928,42.5784503]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0051/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p51","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0051/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0051","type":"ImageService3","width":1675,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1537.4,1871.9 1481.7,1905.4 1429.5,1904.8 1390.9,1916.6 1391.0,1979.0 -0.0,1979.0 -0.0,136.6 326.3,136.7 335.8,0.0 1529.0,52.0 1537.4,1871.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0051/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1529.0,515.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.7121863,42.5751705]}},{"type":"Feature","properties":{"resourceCoords":[1529.0,52.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.7121591,42.5759853]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0052/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p52","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0052/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0052","type":"ImageService3","width":1672,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1979.0 -0.0,1904.5 144.6,1860.6 138.0,65.0 777.5,80.3 1173.8,39.8 1205.5,252.3 1672.0,281.1 1672.0,1979.0 -0.0,1979.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0052/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[138.0,1287.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.712229,42.5738056]}},{"type":"Feature","properties":{"resourceCoords":[138.0,65.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.7121591,42.5759853]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0053__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p53 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2940.8"},{"label":"split_canvas_h","value":"3809.6"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0053__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0053","type":"ImageService3","width":1672,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"735.2,0.0 0.0,0.0 0.0,952.4 389.0,951.0 728.9,949.5 735.2,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0053__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":[-70.65572660982913,42.62166968658324]}},{"type":"Feature","properties":{"resourceCoords":[735.2,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65401611456582,42.62134654531316]}},{"type":"Feature","properties":{"resourceCoords":[735.2,952.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65458092465589,42.61970478000092]}},{"type":"Feature","properties":{"resourceCoords":[0.0,952.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.6562914199192,42.62002792127101]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0053__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p53 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"1556.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"5132.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0053__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0053","type":"ImageService3","width":1672,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"735.2,0.0 728.9,949.5 389.0,951.0 389.8,1171.2 515.4,1257.1 512.0,1488.5 951.2,1979.0 1313.0,1979.0 1533.0,1979.0 1672.0,1979.0 1672.0,0.0 735.2,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0053__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1076.0,1862.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6818932,42.6056232]}},{"type":"Feature","properties":{"resourceCoords":[1515.0,258.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6755916,42.6092173]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0055/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p55","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0055/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0055","type":"ImageService3","width":1674,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 1674.0,-0.0 1674.0,1979.0 -0.0,1979.0 0.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0055/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.68000087684547,42.656761415980945]}},{"type":"Feature","properties":{"resourceCoords":[1674.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.67745455827611,42.654453931370185]}},{"type":"Feature","properties":{"resourceCoords":[1674.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.6811377147397,42.65222440782498]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.68368403330906,42.65453189243574]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0056/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p56","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0056/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0056","type":"ImageService3","width":1672,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"368.5,728.1 -0.0,692.5 -0.0,0.0 1672.0,-0.0 1672.0,1979.0 395.5,1979.0 514.9,742.2 368.5,728.1 368.5,728.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0056/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.67706314773426,42.65602101777354]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.67425817493213,42.65392679706691]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.67760488464653,42.65146783345627]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.68040985744865,42.653562054162904]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0006","type":"ImageService3","width":1668,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1979.0 -0.0,621.0 453.6,540.5 398.9,406.2 438.1,0.0 1271.0,0.0 1212.9,353.5 1668.0,223.7 1668.0,1979.0 -0.0,1979.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0006/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.66233746615035,42.613189441389885]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.6604265054359,42.613521225386286]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65989537887079,42.611840840894224]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.66180633958524,42.61150905689783]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0061__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p61 [3]","metadata":[{"label":"streets","value":"1"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3842.0"},{"label":"split_canvas_w","value":"6612.0"},{"label":"split_canvas_h","value":"4074.0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0061__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0061","type":"ImageService3","width":1653,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1653.0,1979.0 1653.0,960.6 1653.0,960.5 1587.4,960.6 0.0,965.0 -0.0,1979.0 1653.0,1979.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0061__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,960.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.62215991575839,42.654010645209866]}},{"type":"Feature","properties":{"resourceCoords":[1653.0,960.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.619172563948,42.65596309487003]}},{"type":"Feature","properties":{"resourceCoords":[1653.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.61753632345695,42.65460846158822]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.62052367526734,42.65265601192805]}},{"type":"Feature","properties":{"resourceCoords":[1044.0,1823.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.618888,42.654097]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0062__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p62 [2]","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":"6688.0"},{"label":"split_canvas_h","value":"3970.4"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0062__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0062","type":"ImageService3","width":1672,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1672.0,0.0 0.0,-0.0 0.0,778.8 902.7,780.8 1137.5,985.6 1672.0,992.6 1672.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0062__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.6817192578276,42.640029975590615]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.68098210862831,42.64295343905563]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,992.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.6786217575424,42.642631404546115]}},{"type":"Feature","properties":{"resourceCoords":[0.0,992.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.67935890674168,42.6397079410811]}},{"type":"Feature","properties":{"resourceCoords":[895.0,261.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6807019,42.6415099]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0063__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p63 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"5"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6612.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0063__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0063","type":"ImageService3","width":1653,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"105.0,1979.0 308.0,1979.0 1653.0,1979.0 1653.0,-0.0 630.7,0.0 640.0,812.6 0.0,802.9 -0.0,1979.0 105.0,1979.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0063__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[698.0,1007.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6271561,42.6234564]}},{"type":"Feature","properties":{"resourceCoords":[698.0,1586.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6278253,42.6234921]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0007","type":"ImageService3","width":1668,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"599.3,476.4 771.2,839.5 815.9,843.2 933.8,745.5 751.3,371.6 1179.3,24.6 1254.0,15.5 1343.8,652.1 1246.7,767.9 1226.8,859.0 1118.2,907.7 885.4,1075.7 1668.0,1979.0 223.5,1979.0 207.4,1883.5 7.0,1979.0 -0.0,193.7 349.5,27.0 642.0,451.8 599.3,476.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.66118462000526,42.61680196775084]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65700836193632,42.61699807495141]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65669442085076,42.61332582521716]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.6608706789197,42.61312971801659]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0008","type":"ImageService3","width":1668,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1668.0,1979.0 183.8,1979.0 219.7,1621.0 669.2,950.8 393.6,785.7 -0.0,745.3 -0.0,643.9 113.7,346.1 126.6,91.0 434.4,73.3 429.9,-0.0 1668.0,-0.0 1668.0,1979.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0008/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65577392456974,42.617624985323]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65294736858552,42.61554196602256]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65628210271966,42.61305660681146]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.65910865870389,42.6151396261119]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gloucester, Massachusetts | 1949 | sanborn03735_007 p9","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"26"}],"created":"2026-09-22T02:46:34Z","modified":"2026-09-22T02:46:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0009","type":"ImageService3","width":1668,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"132.7,1240.0 196.9,1062.6 275.5,558.8 271.9,197.8 1001.2,144.1 540.1,1315.5 494.2,1298.0 473.2,1345.7 132.7,1240.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764gm:g037351949:03735_1949-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[256.0,696.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6622083,42.6150072]}},{"type":"Feature","properties":{"resourceCoords":[1407.0,114.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.6603052,42.616793]}}]}}]}