{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03786_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Melrose, Massachusetts | 1915 | 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":"34"},{"label":"placed","value":"28"},{"label":"unplaced","value":"6"},{"label":"fit sources","value":"georef 19, georef-snap 9"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"4 sheet(s) cut into 10 panels"},{"label":"unplaced pages","value":"p1 (tier 3, 42.45806,-71.07101 +/-847m); p21__1 (tier 2, 42.46852,-71.06673 +/-263m); p21__2 (tier 2, 42.46852,-71.06673 +/-263m); p28__1 (tier 1, 42.43995,-71.07167 +/-107m); p28__2 (tier 1, 42.44741,-71.04371 +/-104m); p28__3 (tier 1, 42.44771,-71.04970 +/-104m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p10","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,191.2 48.5,116.5 390.6,333.4 604.1,0.0 1613.0,0.0 1613.0,623.5 1515.8,1562.6 1209.1,1433.2 1211.6,1530.4 104.6,1504.1 391.9,1076.7 -0.0,906.0 -0.0,191.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[391.0,333.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.07209,42.454231]}},{"type":"Feature","properties":{"resourceCoords":[1516.0,1563.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0691471,42.4519753]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913.0 -0.0,504.5 91.6,267.7 296.4,0.0 1401.5,0.0 1466.8,1326.3 1613.0,1319.2 1613.0,1913.0 -0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0011/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07349938604845,42.45201794085337]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06938389967404,42.45202191951603]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0693775494744,42.448395048488166]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07349303584881,42.44839106982551]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p12","metadata":[{"label":"streets","value":"19"},{"label":"intersections","value":"37"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1475.3,0.0 1613.0,118.1 1613.0,386.9 1486.8,336.4 1466.9,450.8 1446.2,760.9 1503.8,1004.5 1504.0,1400.8 1258.5,1400.1 952.9,1593.7 986.0,1807.5 523.5,1783.3 402.4,1809.8 245.8,1913.0 0.0,1913.0 0.0,-0.0 1475.3,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1196.0,760.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0760184,42.4555014]}},{"type":"Feature","properties":{"resourceCoords":[873.0,1081.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0754693,42.4538607]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"637.6,399.9 719.5,144.8 626.8,0.0 1613.0,0.0 1613.0,142.9 1323.0,197.1 1281.3,707.8 1374.8,1501.3 1323.8,1524.3 1346.3,1611.9 1285.3,1623.1 1281.3,1578.7 1200.4,1585.8 1127.3,1613.2 1119.5,1592.8 904.6,1611.4 912.8,1714.2 802.0,1743.4 762.9,1623.7 541.4,1642.9 451.2,1820.2 438.4,1913.0 292.6,1913.0 189.0,1540.2 0.0,1474.5 57.0,1284.3 248.2,1342.8 358.8,975.1 376.2,712.5 531.9,320.1 637.6,399.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0013/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07929653785214,42.455582953225395]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07732439055948,42.46141713087123]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0680115739868,42.45967933343243]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06998372127946,42.453845155786595]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p14","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"976.3,1782.9 -0.0,1514.0 -0.0,-0.0 878.0,0.0 961.3,56.2 1080.2,0.0 1613.0,0.0 1613.0,1809.2 976.3,1782.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0014/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07648605911126,42.4630064339603]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07244601652977,42.46282146377755]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07274129232648,42.4592617012796]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07678133490798,42.45944667146235]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"309.2,0.0 1613.0,0.0 1613.0,780.2 1492.4,772.0 1546.3,1293.2 1503.5,1833.2 1365.7,1814.7 1358.9,1913.0 1178.7,1913.0 1159.4,1803.1 199.1,1657.8 309.2,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0015/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07324617777742,42.46255233951845]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06918736352412,42.462566785699615]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06916430259804,42.45899046303535]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07322311685134,42.45897601685419]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1340.8 -0.0,-0.0 1099.4,0.0 1120.8,162.2 1222.7,93.7 1394.7,357.8 1481.0,596.0 1192.5,700.1 1286.3,799.8 1321.2,910.7 1507.3,940.3 1424.0,1236.8 1420.3,1477.1 1037.5,1514.6 1067.6,1913.0 98.1,1913.0 81.3,1867.9 150.2,1847.5 74.2,1591.2 30.3,1542.1 0.0,1340.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0016/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08138827995792,42.46465020555793]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07862258793209,42.470283142611045]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06962975315442,42.4678464356354]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07239544518025,42.46221349858229]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,0.0 1613.0,1913.0 1316.0,1913.0 1287.4,1844.9 1138.4,1743.9 1039.0,1814.3 854.9,1848.5 826.2,1705.9 900.1,1651.8 429.0,1690.8 414.4,1750.5 126.4,1741.0 161.6,1501.6 283.6,1216.5 101.8,1162.6 81.5,1047.3 0.9,935.5 302.6,869.5 247.7,620.4 110.8,334.2 0.0,389.2 0.0,-0.0 1613.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0017/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08059239530043,42.46866969457315]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07885089897145,42.47448294997123]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06956951846577,42.47294871953356]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07131101479474,42.46713546413548]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p18","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1208.7,1627.4 265.3,1806.6 -0.0,1752.6 -0.0,811.8 93.0,967.7 379.8,937.6 346.5,567.9 226.1,358.7 453.1,83.7 718.0,0.0 1613.0,0.0 1613.0,1640.1 1208.7,1627.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0018/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07135306765952,42.47208956759502]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06733901837646,42.47171527545506]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0679366027644,42.468178924410275]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07195065204746,42.468553216550234]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p19","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0019","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1895.1 -0.0,551.5 1152.1,229.9 1433.5,216.0 1467.3,1838.4 1414.9,1837.8 1413.8,1913.0 -0.0,1895.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0019/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07130842127468,42.46975062449005]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06740552431205,42.46900390454334]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06859766895691,42.4655653407057]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07250056591954,42.466312060652406]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p2","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"12"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"211.8,1281.8 -0.0,1261.8 -0.0,1041.2 136.8,1050.2 142.1,512.5 53.6,0.0 1613.0,0.0 1613.0,103.7 1482.7,83.8 1405.2,591.1 1487.9,705.4 1373.7,1733.2 361.1,1653.0 211.8,1281.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[879.0,1692.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0676533,42.4578422]}},{"type":"Feature","properties":{"resourceCoords":[144.0,550.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0693408,42.4600779]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p20","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"15"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0020","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1913.0 835.0,1913.0 841.5,1730.2 -0.0,1700.5 -0.0,75.8 69.2,74.0 54.6,0.0 131.2,0.0 1233.8,0.0 1204.2,211.6 1613.0,270.1 1613.0,421.2 1374.5,548.7 1445.3,1119.7 1613.0,1086.2 1613.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[99.0,331.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.067878,42.468197]}},{"type":"Feature","properties":{"resourceCoords":[967.0,1657.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0665138,42.465438]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p22","metadata":[{"label":"streets","value":"22"},{"label":"intersections","value":"27"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0022/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0022","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"170.2,1332.9 -0.0,1298.9 0.0,-0.0 1613.0,0.0 1613.0,1913.0 1511.7,1913.0 1549.0,1848.4 1384.8,1746.2 1421.2,1698.0 1340.0,1630.2 1276.3,1620.0 1179.6,1664.6 1109.6,1591.5 1101.3,1547.2 896.6,1552.5 889.5,1698.8 698.4,1633.2 705.7,1913.0 164.1,1913.0 185.7,1620.9 317.4,1581.0 332.5,1505.6 134.3,1435.6 170.2,1332.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0022/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[922.0,1116.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0611695,42.4690175]}},{"type":"Feature","properties":{"resourceCoords":[1375.0,1001.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0589185,42.4693798]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p23","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"12"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0023","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"253.1,1502.9 214.3,1913.0 -0.0,1913.0 -0.0,147.2 369.0,284.6 390.2,0.0 789.5,0.0 815.2,108.3 936.0,232.7 1126.8,150.8 1270.2,187.2 1405.1,309.9 1331.7,402.1 1613.0,588.6 1613.0,664.2 1570.6,733.4 1613.0,734.5 1613.0,1582.2 1296.4,1382.9 859.5,1856.7 253.1,1502.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0023/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1332.0,402.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0589874,42.466668]}},{"type":"Feature","properties":{"resourceCoords":[982.0,794.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.05988,42.4659394]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p24","metadata":[{"label":"streets","value":"18"},{"label":"intersections","value":"39"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0024","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"148.8,1194.0 -0.0,1128.4 -0.0,-0.0 310.2,0.0 265.6,213.8 369.9,235.6 430.6,39.7 689.9,273.8 950.9,87.5 1084.8,216.7 1130.1,0.0 1613.0,0.0 1613.0,592.1 1295.0,596.0 1236.3,576.8 1239.9,657.8 1243.2,660.8 1256.8,1042.2 1370.0,1041.5 1390.4,1881.7 1335.6,1882.1 1334.5,1765.1 884.6,1775.3 582.0,1720.9 118.0,1586.8 151.3,1381.1 148.8,1194.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0024/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[470.0,445.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0611307,42.4631614]}},{"type":"Feature","properties":{"resourceCoords":[1376.0,1269.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0557827,42.4608063]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p25","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0025/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0025","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.7,1791.3 89.2,1630.3 105.1,1440.5 34.3,1431.2 143.5,1023.3 55.8,579.9 67.4,578.1 152.2,416.5 235.3,454.1 379.4,138.1 382.9,55.5 835.1,192.1 1149.0,253.7 1613.0,250.3 1613.0,526.6 1513.9,527.4 1511.0,848.0 1566.4,848.3 1563.7,1062.2 1613.0,1062.6 1613.0,1297.1 1564.4,1296.9 1562.3,1913.0 1249.0,1913.0 1250.2,1856.3 0.7,1791.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0025/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06367267112536,42.4586021493217]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05574955523872,42.4598624126931]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05373791619867,42.45288059552216]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06166103208531,42.45162033215076]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p26","metadata":[{"label":"streets","value":"24"},{"label":"intersections","value":"24"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0026/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0026","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"167.8,928.9 167.2,694.4 118.2,694.4 120.4,480.4 65.3,480.4 67.5,159.8 165.9,158.5 165.5,0.0 220.6,0.0 223.2,157.7 828.2,149.3 829.4,0.0 1613.0,0.0 1613.0,1913.0 -0.0,1913.0 -0.0,1545.7 119.1,1545.0 126.8,1163.0 119.6,929.0 167.8,928.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0026/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1342.0,1663.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0478111,42.4533477]}},{"type":"Feature","properties":{"resourceCoords":[119.0,1163.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0543841,42.4542361]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0027__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p27 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4508.8"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3143.2"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0027__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0027","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1324.8,1185.2 1325.6,1127.2 -0.0,1127.2 -0.0,1537.9 38.3,1538.7 37.8,1624.8 37.1,1737.8 35.8,1850.8 15.2,1913.0 478.6,1902.4 480.3,1789.8 1472.5,1786.6 1472.5,1188.3 1324.8,1185.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0027__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1199.0,1403.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0533049,42.459311]}},{"type":"Feature","properties":{"resourceCoords":[486.0,1403.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.054103,42.461936]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0027__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p27 [2]","metadata":[{"label":"streets","value":"21"},{"label":"intersections","value":"28"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4508.8"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0027__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0027","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1127.2 1613.0,155.3 1452.9,163.9 1451.3,107.1 204.7,108.3 267.2,241.4 50.5,360.4 139.7,504.6 -0.0,496.6 -0.0,1127.2 1613.0,1127.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0027__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1036.0,931.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0569893,42.4495323]}},{"type":"Feature","properties":{"resourceCoords":[223.0,746.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0611856,42.4497312]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0028__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p28 [4]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2660.4"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4991.6"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0028__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0028","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,856.9 1093.3,850.0 588.8,842.5 378.0,839.4 0.0,665.1 0.0,1913.0 994.0,1913.0 1278.0,1913.0 1613.0,1913.0 1613.0,856.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0028__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[600.0,1095.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.071984,42.4419802]}},{"type":"Feature","properties":{"resourceCoords":[1183.0,1009.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0721275,42.4430558]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p3","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"12"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"703.4,1912.3 0.0,1913.0 0.0,1146.3 127.3,1172.0 123.3,137.1 987.0,100.9 1089.5,0.0 1613.0,0.0 1613.0,1593.6 1235.7,1755.2 703.4,1912.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[674.0,579.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0649409,42.4588702]}},{"type":"Feature","properties":{"resourceCoords":[631.0,1272.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0632685,42.4585206]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p4","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"15"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"760.3,1774.5 778.1,1913.0 511.1,1913.0 539.5,1763.5 364.2,1732.8 -0.0,1506.1 -0.0,1055.4 248.0,991.8 209.9,770.1 -0.0,766.8 -0.0,329.3 42.5,317.3 -0.0,164.7 -0.0,-0.0 307.7,0.0 495.8,364.0 1536.2,347.8 1555.9,1807.7 760.3,1774.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[760.0,1774.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.068871,42.4553408]}},{"type":"Feature","properties":{"resourceCoords":[496.0,364.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0689673,42.4579787]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p5","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"18"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1289.2,836.1 1298.8,1354.5 893.2,1316.1 827.3,1783.9 242.2,1803.8 117.7,961.5 46.4,203.2 1059.7,143.2 1041.3,269.3 1613.0,237.7 1613.0,599.3 1289.2,836.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1405.0,752.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0633478,42.4563734]}},{"type":"Feature","properties":{"resourceCoords":[863.0,1532.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0652147,42.4552315]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p6","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"21"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"356.4,1913.0 219.4,1910.0 284.9,1656.5 149.0,1639.5 501.1,495.6 742.2,-0.0 1439.3,-0.0 1410.4,1825.3 370.4,1711.0 356.4,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1142.0,656.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0661452,42.4536616]}},{"type":"Feature","properties":{"resourceCoords":[827.0,1726.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.068927,42.4540594]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0007__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p7 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"14"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0007__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"61.6,925.4 404.9,1099.3 414.4,1807.2 1384.8,1785.7 1496.4,939.3 1206.8,73.7 883.9,166.4 884.2,517.1 665.2,670.9 659.5,682.0 653.6,679.1 347.4,894.2 78.2,894.4 61.6,925.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0007__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1374.0,571.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.062271,42.4556392]}},{"type":"Feature","properties":{"resourceCoords":[1002.0,1788.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0629534,42.4533442]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0007__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p7 [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":"3536.8"},{"label":"split_canvas_h","value":"3578.0"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0007__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 -0.0,894.5 347.4,894.2 884.2,517.1 883.7,0.0 0.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0007__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":[-71.06903012872039,42.465792143108395]}},{"type":"Feature","properties":{"resourceCoords":[884.2,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0668621370237,42.4653579883241]}},{"type":"Feature","properties":{"resourceCoords":[884.2,894.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06745726914086,42.46374043232347]}},{"type":"Feature","properties":{"resourceCoords":[0.0,894.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06962526083754,42.46417458710776]}},{"type":"Feature","properties":{"resourceCoords":[129.0,95.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.068777,42.4655569]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p8","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"14"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1913.0 -0.0,1913.0 -0.0,509.2 296.2,643.2 362.8,137.3 1354.1,101.7 1362.5,545.7 1403.5,521.4 1521.2,760.5 1370.2,1136.2 1393.8,1145.9 1417.5,1600.0 1613.0,1589.8 1613.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1370.0,1136.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0662861,42.4511316]}},{"type":"Feature","properties":{"resourceCoords":[296.0,643.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0691471,42.4519753]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1915 | sanborn03786_006 p9","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"28"}],"created":"2026-09-22T23:26:46Z","modified":"2026-09-22T23:26:46Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,213.7 1613.0,1913.0 1087.6,1913.0 761.2,1762.4 510.8,1869.9 533.5,1913.0 105.0,1913.0 109.0,-0.0 497.4,-0.0 823.5,129.9 1084.4,-0.0 1344.6,388.8 1613.0,213.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861915:03786_1915-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[401.0,1204.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0646195,42.4526488]}},{"type":"Feature","properties":{"resourceCoords":[106.0,141.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0619993,42.4534055]}}]}}]}