{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03786_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Melrose, Massachusetts | 1897 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"19"},{"label":"placed","value":"18"},{"label":"unplaced","value":"1"},{"label":"fit sources","value":"georef 10, georef-snap 8"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"4 sheet(s) cut into 10 panels"},{"label":"unplaced pages","value":"p3__2 (tier 1, 42.46612,-71.06076 +/-128m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0010__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 | 1897 | sanborn03786_003 p10 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"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":"2026-10-19T04:56:19Z","modified":"2026-10-19T04:56:19Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0010__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"860.2,14.7 863.5,42.5 685.1,115.2 281.4,36.1 149.2,134.7 55.4,635.0 120.3,902.4 68.0,987.4 35.0,1512.5 76.7,1671.2 373.4,1699.8 483.8,1794.3 824.4,1819.5 1069.1,1557.6 1223.8,1273.3 1487.8,1260.2 1578.7,818.9 1547.0,409.2 1612.0,428.8 1612.0,419.5 1165.1,124.1 1165.0,119.2 860.2,14.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0010__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[475.0,1252.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.07232387376193,42.44934000065183]}},{"type":"Feature","properties":{"resourceCoords":[784.0,354.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.07138372820071,42.450941957404424]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0010__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 | 1897 | sanborn03786_003 p10 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.74"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3517.6"},{"label":"split_canvas_y","value":"5360.0"},{"label":"split_canvas_w","value":"2934.4"},{"label":"split_canvas_h","value":"2292.0"}],"created":"2026-10-19T04:56:19Z","modified":"2026-10-19T04:56:19Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0010__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1547.8,1340.0 1176.1,1405.6 1009.2,1657.2 977.1,1888.1 905.2,1888.5 1010.4,1912.0 1021.0,1912.0 1578.2,1889.2 1588.7,1910.2 1605.3,1528.5 1595.7,1528.8 1547.8,1340.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0010__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[879.4,1340.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07217484850288,42.45330766515025]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1340.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07050004095255,42.4527503433734]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07108976353564,42.451785758853]}},{"type":"Feature","properties":{"resourceCoords":[879.4,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07276457108597,42.452343080629845]}},{"type":"Feature","properties":{"resourceCoords":[1034.3,1551.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.072039,42.452835]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0011__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 | 1897 | sanborn03786_003 p11 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.89"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3458.8"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T04:56:19Z","modified":"2026-10-19T04:56:19Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0011__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"283.2,1867.5 424.8,1787.3 739.6,1810.5 822.1,1735.8 645.8,791.1 652.8,462.7 753.8,185.2 700.6,93.3 432.1,88.2 127.5,175.9 168.3,619.1 69.3,918.8 101.9,1273.3 56.5,1426.5 92.5,1818.0 283.2,1867.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0011__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[320.9,283.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0618992,42.4633756]}},{"type":"Feature","properties":{"resourceCoords":[320.9,375.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06192,42.463209]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0011__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 | 1897 | sanborn03786_003 p11 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.15"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2754.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3698.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T04:56:19Z","modified":"2026-10-19T04:56:19Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0011__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"795.9,481.6 833.5,1230.2 923.9,1800.5 1072.7,1847.5 1443.3,1846.2 1508.7,1822.4 1538.5,1731.0 1610.6,791.0 1506.2,199.7 1445.9,103.0 1035.2,248.4 899.5,228.2 864.6,440.2 795.9,481.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0011__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[908.4,1300.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.071984,42.4419802]}},{"type":"Feature","properties":{"resourceCoords":[771.5,473.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0728768,42.4437576]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1897 | sanborn03786_003 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:56:19Z","modified":"2026-10-19T04:56:19Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"67.5,1.6 94.3,59.8 128.7,313.2 73.4,373.5 145.2,479.2 45.1,627.3 32.0,961.5 80.2,1844.5 472.3,1804.0 505.3,1869.8 535.9,1826.7 1187.5,1890.7 1574.4,1836.5 1601.0,964.2 1484.7,640.3 1514.1,307.7 1565.2,256.8 1513.2,182.6 1558.5,157.4 1402.0,76.3 1174.3,116.5 1048.8,54.8 1028.2,1.0 100.1,1.0 67.5,1.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[513.0,1210.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06260226831498,42.46723346673228]}},{"type":"Feature","properties":{"resourceCoords":[923.0,134.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06474599387441,42.46864811291715]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1897 | sanborn03786_003 p13","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:56:19Z","modified":"2026-10-19T04:56:19Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"561.0,1865.3 92.1,1879.0 28.6,1784.4 82.4,1579.6 15.3,1113.6 50.5,154.4 119.5,84.0 715.8,34.3 969.1,48.2 944.1,111.1 1081.2,126.1 1328.8,33.2 1556.7,63.5 1578.8,195.7 1502.9,268.4 1494.8,403.1 1560.2,435.0 1595.7,1012.8 1570.8,1821.0 1525.0,1891.0 1532.2,1912.0 841.1,1912.0 578.9,1907.8 561.0,1865.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1047.0,952.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0676913,42.4686473]}},{"type":"Feature","properties":{"resourceCoords":[874.0,244.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0694989,42.4687696]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1897 | sanborn03786_003 p14","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:56:19Z","modified":"2026-10-19T04:56:19Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1187.0,29.9 1159.4,1.0 1153.7,1.0 769.0,79.3 415.0,55.3 47.7,149.7 15.9,1433.2 83.0,1867.8 1574.5,1850.4 1598.1,300.3 1558.9,52.5 1529.6,79.7 1502.2,59.9 1495.3,20.4 1187.0,29.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1153.0,1406.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0729745,42.4546223]}},{"type":"Feature","properties":{"resourceCoords":[1153.0,205.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0714131,42.4565316]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1897 | sanborn03786_003 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:56:19Z","modified":"2026-10-19T04:56:19Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"352.0,1843.9 35.4,1754.1 27.1,152.5 69.8,53.2 818.9,46.3 889.6,98.8 1259.7,44.3 1325.7,126.7 1486.2,112.6 1569.2,472.8 1561.4,635.2 1498.3,670.1 1515.6,867.1 1494.8,868.9 1521.7,1295.1 1517.3,1295.1 1514.0,1295.2 1513.8,1509.8 1518.7,1806.5 968.2,1809.5 968.1,1840.6 352.0,1843.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[685.0,768.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.07128799321326,42.461179089119355]}},{"type":"Feature","properties":{"resourceCoords":[1503.0,1796.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06947748968824,42.459160486333595]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0003__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 | 1897 | sanborn03786_003 p3 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.85"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2734.0"},{"label":"split_canvas_h","value":"3395.6"}],"created":"2026-10-19T04:56:19Z","modified":"2026-10-19T04:56:19Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"470.6,817.9 646.4,794.0 667.4,725.7 653.6,141.8 536.2,24.0 40.4,14.6 29.3,492.0 148.7,573.0 111.8,819.1 170.7,804.6 464.1,750.8 470.6,817.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[663.5,717.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06176913035576,42.45869324309802]}},{"type":"Feature","properties":{"resourceCoords":[218.8,793.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06285452177096,42.4587655897009]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0003__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1897 | sanborn03786_003 p3 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.96"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3372.4"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4279.6"}],"created":"2026-10-19T04:56:19Z","modified":"2026-10-19T04:56:19Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0003__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"178.0,1285.0 175.9,1499.0 178.0,1795.0 379.7,1793.4 656.0,1797.5 1370.8,1797.4 1510.6,1801.0 1550.3,1423.7 1532.0,1372.0 1550.0,1344.6 1547.5,1344.4 1575.0,1042.0 1438.7,891.5 183.6,858.2 162.8,859.8 185.7,1285.0 178.0,1285.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0003__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[178.0,1285.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0693408,42.4600779]}},{"type":"Feature","properties":{"resourceCoords":[178.0,1795.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0694407,42.4591386]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1897 | sanborn03786_003 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:56:19Z","modified":"2026-10-19T04:56:19Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"139.2,1912.0 138.2,1912.0 133.6,1361.5 129.4,1159.3 130.0,882.1 121.1,165.6 123.0,25.3 607.5,61.8 1294.4,123.3 1383.0,128.8 1291.0,635.3 1387.6,645.8 1612.0,716.6 1612.0,770.1 1530.0,780.1 1587.7,1010.1 1526.1,1221.6 1554.6,1616.0 1597.7,1628.4 1470.5,1912.0 1434.1,1912.0 1445.2,1868.5 859.2,1892.4 533.8,1789.7 168.5,1815.6 169.3,1912.0 139.2,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[128.0,384.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06700836895857,42.458985614070926]}},{"type":"Feature","properties":{"resourceCoords":[772.0,89.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06642038574675,42.4577547350125]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1897 | sanborn03786_003 p5","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:56:19Z","modified":"2026-10-19T04:56:19Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"56.3,1667.5 68.9,979.1 71.0,494.0 79.1,114.2 56.6,64.2 72.2,35.4 985.4,19.4 1217.1,77.8 1218.5,67.0 1325.6,156.1 1267.0,389.0 1324.9,380.5 1612.0,356.4 1612.0,382.7 1612.0,421.5 1606.5,421.7 1611.3,769.0 1521.6,991.0 1573.9,1493.5 1612.0,1488.4 1612.0,1555.5 1593.2,1566.5 1259.0,1758.8 1124.8,1821.7 1084.4,1827.9 941.4,1837.8 888.0,1872.2 832.5,1882.0 749.0,1870.5 462.9,1798.3 381.8,1786.5 57.1,1756.1 56.3,1667.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1267.0,389.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06312,42.458771]}},{"type":"Feature","properties":{"resourceCoords":[71.0,494.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.066115,42.458935]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1897 | sanborn03786_003 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:56:19Z","modified":"2026-10-19T04:56:19Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"162.6,1675.1 49.0,1305.3 134.2,1046.8 79.4,793.8 138.9,712.5 72.1,570.9 122.0,553.3 118.7,320.3 98.5,226.2 603.4,154.8 923.1,104.7 1004.0,96.2 1296.7,95.7 1379.7,86.3 1430.7,63.4 1430.8,878.7 1428.4,1206.1 1429.2,1726.4 1164.2,1726.1 1164.0,1787.4 889.0,1720.0 885.3,1653.5 586.1,1726.8 331.9,1786.3 334.6,1794.2 88.0,1713.2 162.6,1675.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[721.0,564.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06679738511384,42.45585516909167]}},{"type":"Feature","properties":{"resourceCoords":[601.0,146.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06665410385659,42.45665719761075]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0007__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 | 1897 | sanborn03786_003 p7 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.93"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"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":"2026-10-19T04:56:19Z","modified":"2026-10-19T04:56:19Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0007__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"91.2,680.1 113.2,667.2 529.3,1021.8 680.0,1218.4 844.5,1423.5 1010.1,1694.2 1143.8,1912.0 1162.7,1912.0 1185.5,1912.0 1181.4,1902.3 1579.8,1826.2 1612.0,1450.3 1612.0,1437.0 1576.4,1377.0 1569.0,924.0 1600.3,897.1 1518.9,702.6 1454.6,720.0 1438.2,703.9 1165.8,431.5 1070.2,318.3 1053.8,281.1 1007.1,145.7 960.0,103.1 139.0,115.0 140.4,293.1 44.6,365.0 85.8,644.0 112.3,666.5 91.0,679.0 91.2,680.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0007__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1449.0,1605.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0607223,42.455861]}},{"type":"Feature","properties":{"resourceCoords":[139.0,115.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0654734,42.4547914]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0007__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 | 1897 | sanborn03786_003 p7 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.85"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4474.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1978.0"},{"label":"split_canvas_h","value":"2112.0"}],"created":"2026-10-19T04:56:19Z","modified":"2026-10-19T04:56:19Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0007__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1466.7,527.0 1516.7,518.3 1591.4,418.4 1598.3,108.4 1546.8,24.8 1146.8,14.3 1123.7,197.8 1118.5,196.2 1118.5,237.4 1466.7,527.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0007__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1118.5,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06231850100944,42.457002534896944]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06112924476794,42.4572590639714]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,528.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06075835188317,42.4563231822204]}},{"type":"Feature","properties":{"resourceCoords":[1118.5,528.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06194760812467,42.456066653145946]}},{"type":"Feature","properties":{"resourceCoords":[1534.1,141.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06122,42.4569682]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0007__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1897 | sanborn03786_003 p7 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.74"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3194.4"},{"label":"split_canvas_w","value":"3918.4"},{"label":"split_canvas_h","value":"4457.6"}],"created":"2026-10-19T04:56:19Z","modified":"2026-10-19T04:56:19Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0007__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"98.1,1912.0 174.1,1912.0 253.7,1871.8 929.9,1853.5 343.3,1003.0 271.5,905.9 92.1,906.1 92.0,1238.2 96.5,1766.1 98.1,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0007__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[90.0,898.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06547062729742,42.454805568933395]}},{"type":"Feature","properties":{"resourceCoords":[90.0,1880.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0664599951625,42.45316074326594]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1897 | sanborn03786_003 p8","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:56:19Z","modified":"2026-10-19T04:56:19Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"60.2,1600.7 88.8,1219.5 79.1,1219.5 38.3,1029.3 37.1,1029.2 62.4,309.1 125.4,251.3 138.2,72.0 167.7,57.6 414.6,143.7 412.1,135.7 669.2,80.4 972.0,12.0 974.5,79.1 1250.3,152.0 1251.6,90.2 1518.6,95.4 1516.5,240.3 1591.8,242.2 1539.6,266.9 1587.9,555.4 1556.1,1873.4 957.5,1886.7 954.7,1877.9 440.4,1736.1 438.9,1731.5 118.1,1726.7 60.2,1600.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[972.0,12.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.067514,42.453875]}},{"type":"Feature","properties":{"resourceCoords":[396.0,1219.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0700008,42.4522228]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Melrose, Massachusetts | 1897 | sanborn03786_003 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:56:19Z","modified":"2026-10-19T04:56:19Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"363.5,1912.0 184.9,1399.9 154.4,1156.0 116.5,898.0 110.3,583.4 105.0,329.9 69.3,309.0 105.4,31.9 1513.7,77.6 1586.1,150.8 1611.9,321.1 1592.3,508.4 1526.3,581.6 1611.8,1085.9 1574.9,1854.2 1439.2,1898.2 408.6,1862.9 388.8,1912.0 363.5,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764mm:g037861897:03786_1897-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[136.0,980.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0619609067302,42.45492974390615]}},{"type":"Feature","properties":{"resourceCoords":[1674.0,1627.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06317985453032,42.4519555824834]}}]}}]}