{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03858_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Springfield, Massachusetts | 1911 | mapsnap generated fit (2026-10-24)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-24"},{"label":"run","value":"corpus-v2.2"},{"label":"pages","value":"105"},{"label":"placed","value":"83"},{"label":"unplaced","value":"22"},{"label":"fit sources","value":"georef-snap 56, georef 29"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"19 sheet(s) cut into 37 panels"},{"label":"unplaced pages","value":"p0__2 (tier 1, 42.07835,-72.60425 +/-100m); p101 (tier 1, 42.09745,-72.58893 +/-260m); p111 (tier 1, 42.09606,-72.58490 +/-270m); p115 (tier 1, 42.09841,-72.57537 +/-261m); p117__1 (tier 1, 42.10504,-72.57343 +/-140m); p118 (tier 1, 42.09246,-72.58340 +/-263m); p122__1 (tier 1, 42.08772,-72.58004 +/-255m); p128__1 (tier 1, 42.09903,-72.56699 +/-100m); p137__2 (tier 1, 42.09892,-72.56698 +/-102m); p139__2 (tier 1, 42.10140,-72.56661 +/-100m); p142__1 (tier 2, 42.09881,-72.55990 +/-100m); p142__2 (tier 1, 42.10200,-72.55775 +/-191m); p144__2 (tier 1, 42.09340,-72.55726 +/-100m); p147__2 (tier 1, 42.08971,-72.57706 +/-204m); p150__2 (tier 1, 42.08796,-72.57481 +/-148m); p156__2 (tier 1, 42.08866,-72.57429 +/-100m); p170__1 (tier 1, 42.08610,-72.55760 +/-100m); p173__1 (tier 1, 42.08865,-72.55110 +/-100m); p176__1 (tier 1, 42.08484,-72.54894 +/-100m); p179__2 (tier 1, 42.08346,-72.54881 +/-113m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0102/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p102","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0102/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0102","type":"ImageService3","width":1692,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"271.0,1709.8 564.5,1711.8 858.5,1702.5 1112.0,1713.9 1239.3,1718.1 1485.3,1714.8 1507.0,1532.9 1535.7,1351.6 1598.8,985.5 1634.0,749.0 1662.0,505.7 1691.0,362.2 1679.5,363.2 1526.4,158.9 1326.2,73.0 439.1,57.1 238.3,167.9 100.0,166.9 45.9,242.2 1.0,217.8 1.0,309.5 36.8,425.8 188.8,1015.5 162.1,992.5 156.6,1432.0 179.8,1432.3 186.5,1711.7 271.0,1709.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0102/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1575.0,1110.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.58094082501378,42.10375963775313]}},{"type":"Feature","properties":{"resourceCoords":[82.0,722.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.58399658256843,42.10215848449894]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0103/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p103","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0103/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0103","type":"ImageService3","width":1691,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1625.9,432.9 1630.0,663.9 1627.5,896.0 1617.5,1051.0 1591.1,1766.9 1516.2,1762.2 1081.7,1760.9 999.8,1777.0 790.5,1776.5 685.5,1749.6 555.5,1750.6 419.2,1765.2 97.6,1763.6 109.4,1747.7 61.9,1543.8 75.9,229.9 521.2,142.6 1277.3,128.3 1590.0,168.8 1614.7,216.3 1625.9,432.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0103/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1618.0,1750.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.58434707352788,42.09914510700949]}},{"type":"Feature","properties":{"resourceCoords":[1618.0,232.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.58703988531396,42.10091609748175]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0104/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p104","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0104/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0104","type":"ImageService3","width":1690,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"176.8,224.0 428.7,221.7 1172.6,117.2 1416.3,253.5 1415.2,342.9 1450.5,463.5 1595.6,1058.6 1569.1,1035.1 1557.7,1477.0 1581.1,1477.5 1584.2,1758.6 1580.8,1758.5 1318.5,1754.7 1003.8,1756.5 805.7,1745.1 378.8,1744.8 141.2,1742.6 72.3,1735.5 124.1,1033.3 139.6,881.4 150.3,653.5 154.7,426.5 151.4,213.3 176.8,224.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0104/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1521.0,727.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.58401766663228,42.102238212819614]}},{"type":"Feature","properties":{"resourceCoords":[702.0,549.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.58560416055063,42.10130898068196]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0105/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p105","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"17"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0105/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0105","type":"ImageService3","width":1697,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1499.5,1780.2 1371.6,1752.5 1211.1,1728.8 1147.3,1732.0 1095.2,1751.8 1074.2,1717.8 1045.8,1618.7 1036.0,1492.3 1010.3,1377.0 1009.6,1337.8 751.0,1383.0 517.5,1420.4 287.0,1465.5 167.2,1477.2 158.9,1294.5 157.6,1111.2 160.3,740.1 156.4,501.4 144.3,257.1 149.5,110.9 403.6,44.7 1459.1,38.2 1459.0,51.8 1523.8,51.8 1587.2,815.9 1581.1,816.3 1616.9,1262.0 1666.0,1258.0 1526.9,1843.5 1513.3,1859.5 1499.5,1780.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0105/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[751.0,1383.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57903,42.103745]}},{"type":"Feature","properties":{"resourceCoords":[1666.0,1258.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.577535,42.104985]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0106/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p106","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0106/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0106","type":"ImageService3","width":1688,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,61.4 1.0,75.1 65.2,74.3 137.5,841.6 131.3,842.1 172.3,1289.7 221.6,1285.1 88.4,1875.2 130.2,1825.0 392.3,1886.5 1640.2,1916.3 1611.3,257.0 1359.7,77.0 1094.7,42.5 1.0,61.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0106/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1563.0,1222.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57514180195605,42.106609742810534]}},{"type":"Feature","properties":{"resourceCoords":[234.0,1222.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.5776095302444,42.10508611018198]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0107/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p107","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0107/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0107","type":"ImageService3","width":1689,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"55.3,1484.7 56.6,1478.3 109.3,181.1 164.5,147.7 478.7,149.5 611.9,135.3 738.9,134.4 841.4,160.9 1045.8,161.5 1125.8,145.8 1550.4,147.5 1623.5,152.1 1614.5,404.6 1598.9,563.6 1566.3,762.1 1550.4,829.6 1449.3,1205.8 1405.9,1339.4 1336.9,1578.2 1267.0,1759.0 55.3,1484.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0107/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1481.0,1126.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.58281905283388,42.097735877255936]}},{"type":"Feature","properties":{"resourceCoords":[1436.0,1284.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.58260431202116,42.09748669703651]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0108/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p108","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0108/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0108","type":"ImageService3","width":1689,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"500.4,187.2 735.0,182.6 1156.6,170.7 1352.5,176.4 1345.7,523.7 1346.8,798.9 1343.5,1137.7 1354.0,1482.4 1427.3,1662.1 1438.0,1828.0 1163.0,1836.1 701.7,1842.2 470.7,1845.3 30.7,1854.1 66.5,1776.7 137.2,1597.5 207.5,1360.6 251.6,1228.1 354.7,855.0 371.0,788.0 404.8,590.9 421.4,433.0 432.2,182.1 500.4,187.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0108/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[371.0,788.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.583343,42.098285]}},{"type":"Feature","properties":{"resourceCoords":[1438.0,1828.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.5797175,42.098503]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0109/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p109","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0109/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0109","type":"ImageService3","width":1697,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"419.9,144.3 680.7,145.0 768.6,143.2 1062.1,145.6 1356.2,136.7 1609.7,148.4 1638.0,149.4 1654.5,955.3 1656.4,955.4 1641.2,1734.8 1696.0,1741.1 1696.0,1786.3 921.2,1856.3 914.0,1842.2 792.8,1823.5 439.3,1821.5 272.7,1811.0 164.6,1813.8 156.7,1646.7 86.0,1464.5 81.3,1117.3 90.5,776.3 94.0,499.4 106.8,149.8 419.9,144.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0109/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[90.0,761.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.58178614913317,42.09962113392441]}},{"type":"Feature","properties":{"resourceCoords":[149.0,1814.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57974165642317,42.09848134807764]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0110/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p110","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0110/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0110","type":"ImageService3","width":1697,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"171.9,174.5 420.6,173.4 542.0,182.6 779.7,177.7 1019.0,181.1 1284.7,181.0 1278.5,220.2 1284.1,339.6 1271.9,467.3 1283.0,571.1 1298.0,608.6 1353.3,598.0 1417.5,605.9 1573.4,657.4 1696.0,707.4 1696.0,734.6 1696.0,788.8 1646.3,830.0 1637.8,1211.2 1544.3,1347.9 1509.5,1780.5 1132.9,1837.0 1101.1,1901.2 989.6,1887.4 339.0,1806.8 118.9,1824.9 118.2,1779.3 62.8,1772.5 84.2,985.0 82.4,984.9 71.9,170.3 171.9,174.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0110/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1041.0,180.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57899822424613,42.10377636672968]}},{"type":"Feature","properties":{"resourceCoords":[394.0,1032.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57841653172378,42.10192145526288]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0112/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p112","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0112/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0112","type":"ImageService3","width":1697,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"259.9,1614.2 308.9,1391.1 279.3,215.0 1522.4,211.5 1505.3,295.6 1463.9,446.4 1418.0,587.8 1300.1,910.7 1228.3,1086.2 1174.7,1205.5 1101.7,1385.1 1036.7,1565.5 929.0,1835.0 748.8,1794.8 564.1,1781.6 356.9,1772.1 244.1,1754.5 281.9,1641.6 239.9,1631.4 259.9,1614.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0112/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1114.0,1394.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.5811502725926,42.09453391169627]}},{"type":"Feature","properties":{"resourceCoords":[1541.0,218.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.58196712005662,42.096701969805174]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0113/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p113","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0113/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0113","type":"ImageService3","width":1697,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"159.5,1337.8 1.0,1565.5 1.0,1581.2 60.8,1612.7 129.4,1648.4 241.6,1704.8 267.6,1714.9 300.3,1727.6 393.8,1756.8 449.2,1768.2 557.5,1788.2 610.7,1797.0 708.5,1809.2 768.5,1809.1 875.9,1799.9 1046.1,1782.9 1090.2,1777.2 1220.0,1758.6 1236.2,1756.3 1595.9,1697.2 1564.8,1355.7 1459.2,1368.0 1457.3,1284.6 1580.2,948.9 1555.2,947.2 1562.0,561.7 1570.8,561.8 1556.8,186.8 1351.3,190.5 906.4,201.4 831.6,339.6 754.6,467.5 565.9,756.8 455.8,912.2 376.2,1016.8 264.0,1176.0 159.5,1337.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0113/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[264.0,1176.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.5811871,42.094534]}},{"type":"Feature","properties":{"resourceCoords":[691.0,566.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.581611,42.09583]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0114/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p114","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0114/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0114","type":"ImageService3","width":1697,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"123.4,185.2 129.1,559.2 120.3,559.0 105.0,943.1 129.8,945.3 1.0,1274.7 1.0,1360.2 105.5,1350.4 129.0,1691.5 219.7,1678.7 306.6,1666.4 310.4,1665.0 1446.1,1784.2 1390.8,1978.0 1520.0,1978.0 1520.0,1957.0 1524.0,1951.0 1687.0,1949.0 1687.0,1978.0 1696.0,1978.0 1696.0,521.0 1642.3,393.8 1644.4,212.8 1523.1,194.0 1169.1,191.8 1002.2,181.2 894.0,184.0 616.6,187.2 151.4,185.3 123.4,185.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0114/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[894.0,184.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.5797175,42.098503]}},{"type":"Feature","properties":{"resourceCoords":[444.0,1143.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.578643,42.096775]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0116__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p116 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"1182.8"},{"label":"split_canvas_w","value":"3131.6"},{"label":"split_canvas_h","value":"6733.2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0116__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0116","type":"ImageService3","width":1697,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,749.1 1.0,1574.3 40.7,1626.4 72.1,1619.5 290.6,1566.5 554.7,1506.5 723.6,1460.3 708.4,1326.4 682.0,1288.0 642.2,1246.2 635.2,1238.8 91.4,666.2 94.5,731.5 1.0,749.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0116__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[84.0,1261.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57378659011586,42.0992870395588]}},{"type":"Feature","properties":{"resourceCoords":[84.0,1617.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57298204353812,42.09906143592306]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0116__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p116 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"6788.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0116__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0116","type":"ImageService3","width":1697,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1123.8,281.1 145.4,49.3 142.9,33.5 83.2,205.6 101.5,443.4 708.4,1326.5 710.0,1340.5 713.7,1372.8 755.0,1364.3 750.8,1298.8 1417.0,1978.0 1524.0,1978.0 1524.0,1950.0 1668.0,1950.0 1696.0,1921.8 1516.7,1946.4 1380.1,1602.2 1622.0,961.5 1583.7,619.0 1696.0,567.8 1696.0,562.2 1696.0,549.4 1123.8,281.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0116__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[772.0,1367.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57495441451806,42.09966707693521]}},{"type":"Feature","properties":{"resourceCoords":[154.0,11.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57853439390229,42.099534196013884]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0117__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p117 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"0.0"},{"label":"split_canvas_w","value":"6788.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0117__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0117","type":"ImageService3","width":1697,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1429.4,1867.5 1470.3,1978.0 1501.2,1978.0 1528.0,1953.0 1600.2,1951.5 1618.2,1824.5 1631.3,1729.0 1639.9,1108.0 1643.0,543.4 1634.1,122.2 1653.5,40.7 319.8,30.0 102.5,82.6 69.2,305.9 179.7,644.1 82.3,762.2 120.3,1053.6 419.4,1171.5 515.5,1278.5 815.9,1301.7 960.5,1308.9 964.8,1313.1 974.6,1313.9 1239.9,1563.9 1393.2,1851.0 1429.4,1867.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0117__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1285.0,61.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57021450361869,42.103336896205796]}},{"type":"Feature","properties":{"resourceCoords":[1636.0,61.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56958727267335,42.102918864326966]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0119/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p119","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0119/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0119","type":"ImageService3","width":1689,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1631.0,513.0 1678.8,575.4 1678.8,643.6 1460.5,684.4 1580.1,1929.2 432.2,1787.4 428.7,1775.5 292.8,1347.2 266.5,1264.5 264.5,1261.0 194.4,135.4 398.2,158.2 710.7,193.6 1187.4,254.9 1470.5,278.2 1631.0,513.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0119/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1692.0,643.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57446421390134,42.094736340007785]}},{"type":"Feature","properties":{"resourceCoords":[417.0,138.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57554428116899,42.097098683819944]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0120/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p120","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0120/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0120","type":"ImageService3","width":1692,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1341.2,1931.2 1290.4,1940.3 1214.8,1929.9 1085.4,1911.6 1000.1,1892.5 868.7,1856.2 821.1,1836.9 766.6,1816.0 709.2,1793.5 678.8,1781.4 573.8,1730.5 450.1,1676.2 217.7,1551.0 242.8,1477.7 302.1,1299.0 328.4,1179.3 337.6,1066.1 341.4,900.4 332.1,755.5 274.5,523.5 207.3,294.9 1385.8,428.8 1416.7,720.6 1341.2,1931.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0120/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[454.0,1689.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.58078505856393,42.0932162686084]}},{"type":"Feature","properties":{"resourceCoords":[918.0,1862.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.58039298945414,42.09238746091166]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0121/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p121","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.69"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0121/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0121","type":"ImageService3","width":1691,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1621.7,37.6 1581.9,13.3 1575.2,118.1 1450.4,172.7 1355.6,191.3 1257.0,195.3 1153.5,178.2 899.7,109.0 738.3,83.7 515.2,78.9 412.8,81.4 272.9,95.5 66.9,135.2 1.0,142.3 1.0,236.9 53.7,447.0 175.0,863.9 136.9,861.2 112.0,956.5 128.1,958.5 156.1,1334.6 142.9,1603.5 59.6,1712.5 88.8,1914.8 1637.5,1939.6 1617.7,47.1 1621.7,37.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0121/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.57998864743614,42.09229782209616]}},{"type":"Feature","properties":{"resourceCoords":[1691.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.57855970772378,42.08953115206996]}},{"type":"Feature","properties":{"resourceCoords":[1691.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.5828923022628,42.08828138926168]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.58432124197516,42.09104805928788]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0122__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p122 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.46"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4153.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2602.8"},{"label":"split_canvas_h","value":"2520.0"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0122__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0122","type":"ImageService3","width":1689,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1668.8,17.2 1060.8,23.0 1042.7,615.4 1677.8,622.9 1668.8,17.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0122__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1038.3,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.54767386319807,42.106234937903565]}},{"type":"Feature","properties":{"resourceCoords":[1689.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.54697006538059,42.106489877927295]}},{"type":"Feature","properties":{"resourceCoords":[1689.0,630.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.54663984885534,42.10598100862089]}},{"type":"Feature","properties":{"resourceCoords":[1038.3,630.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.54734364667281,42.10572606859716]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0123/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p123","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0123/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0123","type":"ImageService3","width":1706,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1293.7,1140.2 1323.9,1276.0 1390.0,1475.0 1440.0,1593.3 1516.5,1809.3 1533.5,1885.5 1535.6,1895.0 419.1,1875.2 404.6,1978.0 401.1,1978.0 399.0,1978.0 358.5,461.9 580.8,436.1 585.6,367.5 541.9,301.4 396.8,54.1 599.2,89.5 721.3,93.7 818.6,83.0 945.2,80.2 950.0,80.2 980.8,81.0 1112.8,97.2 1479.7,179.9 1466.4,226.1 1410.9,417.6 1389.5,491.3 1318.8,679.7 1283.8,832.2 1278.4,904.4 1418.5,971.5 1281.0,979.8 1293.7,1140.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0123/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1343.0,149.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57269229107541,42.0941315311537]}},{"type":"Feature","properties":{"resourceCoords":[629.0,425.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57438520760749,42.09470574476439]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0124/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p124","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0124/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0124","type":"ImageService3","width":1699,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1611.9,1897.5 1605.8,1895.8 1492.7,1784.5 1345.5,1923.8 1319.0,1886.2 1272.2,1978.0 1238.1,1978.0 1138.3,1978.0 1045.3,1957.5 954.6,1922.1 867.7,1866.0 665.1,1703.6 529.0,1617.2 329.2,1525.0 235.6,1486.8 103.8,1444.3 155.0,1439.5 334.6,209.2 329.2,209.2 329.2,208.2 350.0,103.8 1483.8,128.3 1490.0,156.2 1499.7,301.2 1500.9,540.8 1493.5,649.5 1441.6,1100.4 1499.5,1127.8 1626.1,1114.3 1664.7,1315.2 1698.0,1488.6 1698.0,1636.3 1687.4,1668.9 1611.9,1897.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0124/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[698.0,1321.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57875872540791,42.09119195315901]}},{"type":"Feature","properties":{"resourceCoords":[1451.0,1098.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.5771138515675,42.0905159956271]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0125/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p125","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0125/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0125","type":"ImageService3","width":1699,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"278.5,844.7 352.8,360.2 396.6,42.5 397.3,37.4 572.5,12.3 1010.1,10.8 1550.8,9.1 1698.0,152.9 1698.0,153.4 1698.0,157.7 1585.0,252.8 1545.7,289.1 1540.7,293.7 1496.3,334.6 1393.2,407.1 1364.5,424.3 969.0,674.0 968.3,746.3 1093.8,868.9 1350.8,1106.4 1698.0,1426.4 1698.0,1434.2 1698.0,1450.3 1628.5,1549.5 1562.7,1644.9 1349.8,1952.4 1325.7,1978.0 1107.2,1811.8 876.9,1628.8 848.7,1697.2 427.3,1555.6 389.8,1628.6 310.5,1693.1 247.0,1724.3 246.2,1688.3 237.6,1560.5 222.3,1462.6 221.1,1339.0 247.8,1132.9 278.5,844.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0125/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[869.0,1640.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57220827527573,42.095535774419375]}},{"type":"Feature","properties":{"resourceCoords":[1528.0,351.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57308898786876,42.09803370800006]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0126/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p126","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0126/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0126","type":"ImageService3","width":1699,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"422.5,430.6 410.5,437.9 393.9,448.1 1.0,701.9 1.0,775.9 127.1,896.5 196.3,959.3 387.1,1132.0 748.8,1458.5 670.0,1573.3 605.0,1669.7 627.5,1678.9 831.1,1738.8 872.7,1681.8 984.7,1487.0 1111.7,1277.8 1499.2,1051.6 1237.4,530.6 978.1,9.0 643.0,9.0 390.4,12.5 396.8,22.7 567.0,21.0 725.4,172.6 613.1,273.9 569.1,315.4 525.1,356.8 422.5,430.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0126/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1456.0,1004.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57047033366261,42.098240864208016]}},{"type":"Feature","properties":{"resourceCoords":[-99.0,706.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57374784694859,42.09681951955324]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0127/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p127","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0127/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0127","type":"ImageService3","width":1699,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"168.8,1608.9 215.5,1611.1 381.5,1699.1 442.1,1716.8 1036.8,1727.6 1039.6,1544.7 1669.1,514.3 1671.1,416.3 1606.6,304.2 1663.1,258.2 1668.8,221.7 1564.5,157.2 1531.3,10.2 1544.4,68.3 1547.3,114.1 1490.9,239.1 1319.7,191.6 1058.4,106.7 840.5,39.3 803.9,27.1 825.5,63.0 504.7,565.8 191.3,1062.1 1.0,1362.1 1.0,1490.3 169.5,1585.8 168.8,1608.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0127/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[601.0,1714.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56895979710558,42.0991425273557]}},{"type":"Feature","properties":{"resourceCoords":[1046.0,108.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57291166656707,42.09941880833865]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0128__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p128 [2]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.99"},{"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":"6796.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0128__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0128","type":"ImageService3","width":1699,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"49.2,1007.0 706.5,1007.9 694.3,1634.5 704.8,1752.1 982.1,1531.0 981.7,1476.5 1454.8,1273.0 1549.5,1274.8 1567.5,1125.6 1686.8,1044.6 983.2,11.3 970.1,11.4 970.7,111.5 380.7,112.7 320.2,96.5 153.8,12.6 152.5,11.8 107.5,11.3 102.6,569.8 49.2,1007.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0128__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[978.0,1008.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.566986,42.100166]}},{"type":"Feature","properties":{"resourceCoords":[557.0,1008.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.566829,42.099425]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0129/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p129","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0129/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0129","type":"ImageService3","width":1692,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"300.2,1813.7 240.0,1890.0 251.8,1794.3 251.3,1173.8 246.2,609.5 231.2,188.8 249.3,107.1 913.4,102.8 1199.8,33.6 1541.7,58.3 1452.0,1327.4 1413.9,1376.2 300.2,1813.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0129/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[240.0,1890.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57245,42.100602]}},{"type":"Feature","properties":{"resourceCoords":[240.0,134.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.569584,42.102901]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0130/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p130","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0130/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0130","type":"ImageService3","width":1699,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1349.1,1312.5 1285.8,1266.6 1402.0,913.3 1451.1,797.5 1644.2,422.1 1672.8,338.9 1686.4,268.0 1419.8,200.3 1141.6,123.6 1142.4,196.1 707.5,229.9 701.7,310.2 654.9,398.9 609.5,451.5 651.5,576.6 734.8,940.5 687.8,948.4 417.4,993.3 218.4,1010.7 66.9,1044.8 1.0,1070.5 1.0,1226.8 368.0,1887.3 1664.8,1384.7 1609.8,1369.8 1349.1,1312.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0130/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1148.0,120.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57219983897188,42.09556986147999]}},{"type":"Feature","properties":{"resourceCoords":[1148.0,758.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57169845241685,42.09447125136834]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0131/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p131","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0131/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0131","type":"ImageService3","width":1697,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1473.6,1720.9 1373.8,1757.8 1079.2,1837.3 791.0,1909.5 614.5,1942.9 504.6,1954.3 412.6,1954.0 218.8,1935.5 186.4,1946.8 188.8,1978.0 62.5,1978.0 8.4,1945.0 109.9,1506.0 129.3,1399.7 155.0,1163.3 161.5,1019.5 157.6,981.7 149.6,903.6 98.3,679.0 62.1,555.1 19.3,348.6 5.0,209.5 11.2,47.6 918.0,92.2 925.0,56.6 1084.7,83.0 1069.2,136.1 1442.9,256.2 1463.9,264.9 1531.0,322.1 1588.8,426.5 1696.0,685.3 1696.0,719.8 1696.0,881.5 1568.7,1315.2 1459.5,1656.2 1459.3,1675.1 1473.6,1720.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0131/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.57419178104489,42.0932435678549]}},{"type":"Feature","properties":{"resourceCoords":[1697.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.57102881207672,42.09131511470851]}},{"type":"Feature","properties":{"resourceCoords":[1697.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.57403812419682,42.088558572211305]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.57720109316499,42.090487025357696]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0132/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p132","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0132/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0132","type":"ImageService3","width":1698,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"60.8,1978.0 34.2,1937.1 34.1,1918.0 137.4,1572.8 257.4,1133.8 253.6,936.0 140.6,676.2 80.4,571.7 11.7,514.8 3.9,511.7 650.5,390.2 646.2,349.0 1020.4,339.2 1397.3,735.8 1459.7,846.1 1502.0,917.4 1595.7,1075.0 1674.8,1208.5 1223.6,1431.8 508.9,1777.6 60.8,1978.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0132/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[644.0,352.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57045673419975,42.09070842074184]}},{"type":"Feature","properties":{"resourceCoords":[88.0,1963.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57396056370057,42.089155206317386]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0133/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p133","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0133/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0133","type":"ImageService3","width":1698,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1488.5,1579.8 928.9,1920.3 914.4,1920.0 520.6,1944.5 515.4,1889.3 356.4,1923.0 100.9,566.9 118.4,530.5 209.1,421.2 374.0,321.5 492.0,268.9 547.4,248.0 658.4,210.1 813.2,122.8 727.1,212.3 686.4,240.5 907.0,267.2 1361.1,270.2 1470.0,274.0 1523.2,275.5 1541.7,1513.8 1470.0,1543.0 1488.5,1579.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0133/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1470.0,1543.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.570448,42.09071]}},{"type":"Feature","properties":{"resourceCoords":[1470.0,274.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.567784,42.091816]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0134/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p134","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0134/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0134","type":"ImageService3","width":1696,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1640.0,1629.0 1619.5,1651.6 1577.3,1810.8 1564.1,1784.0 1469.7,1817.2 1326.6,1975.7 1204.8,1881.4 995.5,1719.9 897.8,1640.9 405.0,1412.7 134.2,1528.2 95.6,294.1 125.8,294.5 272.2,280.5 475.3,233.1 838.8,130.4 952.2,68.1 1030.1,17.4 1192.4,15.7 1197.7,35.0 1579.7,1411.1 1639.9,1615.5 1640.0,1629.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0134/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[526.0,219.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.567073,42.091117]}},{"type":"Feature","properties":{"resourceCoords":[1640.0,1629.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.568795,42.088164]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0135/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p135","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0135/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0135","type":"ImageService3","width":1692,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"803.3,1976.0 1011.0,1951.8 1020.2,1948.7 1502.0,1887.9 1570.0,1901.1 1556.5,1226.2 1624.5,1224.4 1647.8,782.0 1623.3,779.2 1603.8,328.2 1480.5,166.8 1468.0,146.2 1117.1,271.5 1084.4,283.9 1015.7,309.5 928.4,328.6 500.7,359.2 374.4,377.8 6.5,463.4 1.0,464.7 1.0,545.5 87.9,799.0 115.2,893.1 120.6,1034.7 64.3,1218.5 11.6,1336.0 54.2,1360.2 374.0,1548.5 539.0,1646.0 630.0,1695.1 646.1,1703.0 685.9,1719.6 701.5,1770.2 735.6,1880.5 766.1,1978.0 803.1,1978.0 803.3,1976.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0135/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1601.0,334.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57044412925386,42.09651187550843]}},{"type":"Feature","properties":{"resourceCoords":[153.0,886.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56990700443507,42.093766740582296]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0136/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p136","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"17"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0136/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0136","type":"ImageService3","width":1696,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"221.4,339.9 286.9,317.4 486.6,224.1 706.5,127.4 1145.3,163.9 1094.0,508.3 1143.8,620.5 1332.9,639.2 1549.3,1168.0 1667.1,1584.5 1064.0,1832.0 863.8,1905.5 710.7,1968.3 684.6,1970.8 673.4,1969.0 515.4,1938.7 216.1,1887.1 188.6,1221.2 255.7,1218.0 269.4,780.8 245.2,778.6 216.5,333.8 221.4,339.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0136/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1064.0,1832.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.566407,42.097362]}},{"type":"Feature","properties":{"resourceCoords":[1079.0,614.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.569288,42.097916]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0137__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p137 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"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":"6808.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0137__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0137","type":"ImageService3","width":1702,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"160.2,1810.4 524.5,1797.6 552.7,1722.9 585.0,1722.6 1006.0,1863.0 1025.2,1792.1 1304.3,1812.9 1343.5,1873.5 1418.1,1915.9 1478.4,1927.7 1544.1,1943.9 1692.8,1538.7 1690.2,1538.9 1193.6,1152.0 1180.7,1155.0 1165.4,920.6 1161.5,864.2 1148.0,856.5 1050.0,795.3 1128.2,554.8 1082.8,448.2 931.6,180.4 866.9,92.7 819.8,34.9 703.4,52.8 78.3,80.2 118.8,735.0 155.5,1396.1 159.3,1612.8 168.6,1780.6 162.4,1806.4 160.2,1810.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0137__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[555.0,1710.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56538016913794,42.09687026382288]}},{"type":"Feature","properties":{"resourceCoords":[124.0,1402.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.5664810951588,42.097346403812274]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0138/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p138","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0138/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0138","type":"ImageService3","width":1686,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,1023.0 1.0,1255.2 56.1,1275.6 1.0,1274.3 1.0,1413.7 567.0,1949.0 654.6,1948.0 690.8,1947.6 716.6,1947.1 1044.8,1937.4 1166.5,1934.8 1189.4,1633.0 1626.4,1619.8 1623.5,945.4 1638.0,545.2 1652.9,233.8 1594.1,221.4 1521.9,178.7 1484.5,118.8 1212.0,94.0 1192.0,162.9 782.7,18.9 764.6,18.8 751.1,18.7 722.3,91.3 365.9,97.9 362.6,104.0 280.4,240.9 96.4,561.5 1.0,1023.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0138/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1161.0,1926.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.5638689021838,42.09346775658612]}},{"type":"Feature","properties":{"resourceCoords":[705.0,-21.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56550612610484,42.09690981805975]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0139__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p139 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.99"},{"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":"6744.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0139__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0139","type":"ImageService3","width":1686,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1374.0,1450.3 1334.7,1163.5 1333.3,701.1 1334.5,106.6 1313.2,115.7 768.0,128.0 252.8,135.7 233.2,329.0 173.3,328.2 161.2,416.5 208.0,730.3 112.2,1316.8 163.2,1818.6 322.3,1915.5 501.9,1917.7 495.8,1978.0 588.6,1978.0 1048.8,1769.6 1047.4,1716.2 1315.3,1494.0 1374.0,1450.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0139__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1267.0,1534.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.565232,42.099968]}},{"type":"Feature","properties":{"resourceCoords":[768.0,128.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.561989,42.101214]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0140/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p140","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0140/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0140","type":"ImageService3","width":1689,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"140.1,1534.1 143.8,1063.4 151.7,458.4 511.9,311.0 926.6,133.4 950.8,123.1 1177.4,98.1 1645.3,147.9 1666.5,1083.7 1252.9,1558.4 1255.1,1571.5 1020.2,1573.8 963.6,1574.6 888.7,1682.2 652.8,1590.9 543.9,1630.3 268.1,1766.7 176.9,1826.5 140.1,1534.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0140/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[263.0,433.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56164826122155,42.100010212359976]}},{"type":"Feature","properties":{"resourceCoords":[512.0,335.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56132698722016,42.099596469913045]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0141/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p141","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0141/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0141","type":"ImageService3","width":1693,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"260.8,1542.6 116.8,1182.8 108.0,1161.2 105.7,608.4 107.7,86.2 121.5,87.8 359.8,26.1 908.4,73.9 1190.1,26.6 1583.1,95.7 1631.8,1147.2 1557.0,1478.4 1557.1,1867.0 1415.1,1898.1 863.7,1819.4 719.8,1911.2 437.6,1912.7 434.5,1956.9 260.8,1542.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0141/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[108.0,1146.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56178270819531,42.10026280065762]}},{"type":"Feature","properties":{"resourceCoords":[1098.0,1654.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.5592307363423,42.099637886493966]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0143/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p143","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0143/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0143","type":"ImageService3","width":1688,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1588.6,1593.8 1687.0,1717.5 1687.0,1814.0 1624.3,1815.1 870.0,1830.0 487.7,1837.1 487.7,1851.0 60.8,1851.4 61.1,1833.7 67.3,1151.2 87.4,746.3 106.7,431.4 171.2,449.4 330.4,52.9 1252.9,8.7 1247.0,82.0 1529.0,56.4 1568.9,99.0 1650.6,659.3 1687.0,663.8 1687.0,1067.0 1682.0,1088.7 1659.0,1075.0 1648.3,1125.7 1543.7,1054.8 1588.6,1593.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0143/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[870.0,1830.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.560863,42.094301]}},{"type":"Feature","properties":{"resourceCoords":[492.0,504.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.562169,42.096591]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0144__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p144 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"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":"6784.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0144__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0144","type":"ImageService3","width":1696,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"305.0,1265.1 405.9,1390.8 407.4,1489.2 441.6,1488.5 483.4,1487.5 879.5,1978.0 1194.9,1978.0 1466.0,1458.9 1469.2,1460.8 1588.3,442.4 1547.0,444.6 1542.4,159.8 1350.8,90.9 621.6,150.2 576.3,336.9 493.1,326.9 479.8,386.2 398.1,749.5 398.1,749.5 398.1,749.5 374.8,735.7 374.6,735.6 363.9,787.4 256.9,715.5 305.0,1265.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0144__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[668.0,1011.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.55841251201078,42.095404196412915]}},{"type":"Feature","properties":{"resourceCoords":[1528.0,1477.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.55624655806878,42.094765637558]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0145/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p145","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0145/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0145","type":"ImageService3","width":1688,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1478.1,1687.8 1582.4,1663.5 1327.7,1558.8 1483.9,1387.7 1537.2,1365.3 1589.8,899.4 1490.2,439.9 1160.7,211.8 469.6,66.2 246.2,108.9 267.6,1124.8 264.3,1123.5 1.0,1858.8 1.0,1939.5 40.8,1978.0 100.5,1978.0 237.3,1978.0 794.2,1848.5 1236.1,1744.2 1478.1,1687.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0145/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1242.0,1735.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.55407645144808,42.093660169283645]}},{"type":"Feature","properties":{"resourceCoords":[233.0,1973.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.55651267560346,42.09327018836596]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0146__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p146 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.88"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3174.0"},{"label":"split_canvas_w","value":"6768.0"},{"label":"split_canvas_h","value":"4742.0"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0146__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0146","type":"ImageService3","width":1692,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"355.2,1084.5 359.6,1378.0 190.9,1855.8 276.6,1899.6 265.8,1935.5 689.8,1907.0 905.5,1900.5 992.0,1919.5 996.9,1867.5 1016.2,1765.1 1030.3,1716.0 1070.0,1569.5 1109.3,1460.3 1149.8,1332.3 1249.0,1089.4 1066.0,1055.0 879.3,1047.9 670.1,1045.3 555.8,1031.3 590.1,916.3 547.4,907.5 355.2,1084.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0146__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1005.0,1823.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.580403,42.092364]}},{"type":"Feature","properties":{"resourceCoords":[1249.0,1089.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.580893,42.093695]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0146__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p146 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"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":"6768.0"},{"label":"split_canvas_h","value":"4582.8"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0146__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0146","type":"ImageService3","width":1692,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1481.7,290.8 1494.3,232.9 1502.4,195.2 1496.6,179.4 1506.3,173.8 1524.7,16.8 1475.5,15.6 1294.8,76.2 1193.1,104.6 894.5,159.1 603.0,206.8 425.1,225.3 315.2,227.4 224.0,219.4 33.1,184.8 1.0,193.2 1.0,661.7 69.1,540.8 867.1,923.2 867.5,923.4 1006.8,1002.8 1092.2,1020.6 1143.6,1000.1 1231.5,1049.6 1457.0,1096.5 1691.0,863.6 1691.0,769.5 1528.0,846.6 1450.7,591.4 1461.0,521.5 1464.3,504.1 1475.7,427.8 1481.7,290.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0146__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[624.0,787.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57637831444036,42.08880362850127]}},{"type":"Feature","properties":{"resourceCoords":[1304.0,98.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57407368714152,42.08913054654003]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0147__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p147 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"0.0"},{"label":"split_canvas_w","value":"6752.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0147__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0147","type":"ImageService3","width":1688,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"42.7,1028.0 53.4,1041.3 46.8,1162.5 49.5,1297.1 62.5,1413.3 84.6,1517.4 1361.6,1917.9 1490.5,1978.0 1514.3,1958.2 1514.0,1955.0 1523.0,1951.0 1597.0,1950.5 1609.8,1775.9 1648.2,1801.5 1683.7,1428.8 1673.0,1428.0 1672.0,1290.0 1687.0,1289.0 1687.0,1151.3 1645.2,1117.7 1619.0,1035.2 1619.8,876.1 1562.7,13.8 1305.0,16.0 1240.8,16.3 1155.0,18.0 1069.0,17.0 1068.6,10.8 1065.0,18.1 865.5,36.7 726.6,474.1 91.2,520.2 42.7,1028.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0147__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1154.0,1821.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.5760900349863,42.086445379000764]}},{"type":"Feature","properties":{"resourceCoords":[1612.0,2037.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57485358123276,42.086457526823224]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0148/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p148","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0148/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0148","type":"ImageService3","width":1698,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"85.4,295.6 1378.7,699.6 1509.2,760.4 1542.1,733.0 1617.1,732.4 1611.6,808.0 1554.0,1138.8 1497.8,1525.9 1452.1,1762.6 1404.6,1978.0 1326.5,1971.9 386.1,1755.0 242.1,1720.0 262.9,1610.9 271.2,1521.8 277.9,1319.3 264.5,1187.9 159.3,642.2 85.4,295.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0148/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1427.0,1992.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57406211590438,42.08441025015476]}},{"type":"Feature","properties":{"resourceCoords":[1625.0,819.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57487053463663,42.08645338774088]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0149/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p149","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.63"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0149/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0149","type":"ImageService3","width":1697,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1552.9,839.5 1629.3,1385.2 1636.0,1516.0 1619.0,1716.0 1606.3,1803.8 1580.1,1910.8 1570.0,1947.0 1395.3,1978.0 1218.6,1978.0 585.5,1945.3 72.0,1824.2 44.2,776.4 119.7,67.2 552.8,24.6 1470.9,61.9 1478.0,13.8 1490.1,13.8 1477.3,135.0 1473.3,270.0 1480.5,387.2 1552.9,839.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0149/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1469.0,252.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57910529331333,42.0864457524575]}},{"type":"Feature","properties":{"resourceCoords":[1680.0,1926.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57668837561883,42.08398315153005]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0150__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p150 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"},{"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":"6788.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0150__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0150","type":"ImageService3","width":1697,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"104.3,1810.7 102.8,1929.8 1023.4,1924.5 1020.1,1890.5 1014.3,1830.4 1005.4,1737.5 871.1,1550.8 1696.0,872.4 1696.0,869.4 1696.0,868.4 1372.0,468.0 1249.2,317.6 1182.5,248.6 1063.5,160.1 988.0,124.8 770.7,57.5 126.0,14.3 81.0,14.0 80.1,1.0 34.9,1.0 76.3,367.5 32.6,350.1 66.8,602.6 78.3,940.7 102.9,1334.0 106.8,1576.8 104.3,1810.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0150__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1372.0,468.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.571959,42.087258]}},{"type":"Feature","properties":{"resourceCoords":[1093.0,1924.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.571757,42.084628]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0151/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p151","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0151/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0151","type":"ImageService3","width":1696,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"57.7,1813.8 54.5,1663.9 23.0,688.9 22.1,661.4 8.7,611.0 9.8,611.0 20.4,610.5 139.9,605.8 105.5,16.3 138.4,16.7 193.0,17.3 200.8,135.0 742.2,113.7 741.1,93.7 1680.4,31.6 1668.5,203.7 1651.7,518.0 1639.6,518.1 1647.8,758.0 1638.8,754.2 1625.0,1070.6 1602.4,1708.5 1640.7,1705.6 1653.2,1810.7 1637.5,1808.0 1615.5,1920.2 1491.4,1880.2 1137.5,1942.8 641.2,1861.0 321.8,1945.8 213.1,1897.6 178.2,1927.3 183.9,1978.0 183.5,1978.0 96.0,1812.2 57.7,1813.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0151/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[800.0,508.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57352086539912,42.08307538803533]}},{"type":"Feature","properties":{"resourceCoords":[57.0,1763.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57680053697774,42.08393852016875]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0152/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p152","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0152/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0152","type":"ImageService3","width":1696,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"84.0,1744.0 46.0,1746.6 73.0,1113.8 88.9,800.1 97.9,803.9 91.5,565.8 103.5,565.8 122.4,254.0 135.5,83.3 450.4,69.8 765.6,53.0 1249.0,30.1 1627.8,10.4 1661.6,10.1 1663.0,55.6 1602.9,126.8 1612.9,645.8 1540.1,1078.5 1553.6,1845.0 1186.2,1793.3 1073.1,1893.7 638.6,1944.0 95.6,1848.3 84.0,1744.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0152/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1012.0,684.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.5729953225648,42.07996115647737]}},{"type":"Feature","properties":{"resourceCoords":[90.0,50.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57194425555438,42.08179945241306]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0153/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p153","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0153/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0153","type":"ImageService3","width":1696,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"94.4,1720.7 6.0,1712.6 6.3,1696.0 94.7,1703.0 100.1,1271.7 109.8,709.5 34.4,710.9 35.8,212.2 74.0,137.7 671.1,147.5 676.2,18.0 676.7,18.0 675.3,141.8 1300.7,116.0 1695.0,155.4 1695.0,176.7 1641.3,175.5 1623.6,735.9 1627.0,736.0 1607.5,1288.2 1600.0,1288.2 1596.0,1606.8 1590.8,1778.2 1598.1,1854.3 642.8,1841.9 642.4,1862.2 92.9,1840.3 94.4,1720.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0153/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[672.0,714.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.5700059979508,42.08380017866081]}},{"type":"Feature","properties":{"resourceCoords":[672.0,165.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56876307041294,42.084058269619355]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0154/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p154","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0154/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0154","type":"ImageService3","width":1696,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"81.0,1752.5 84.3,1583.5 85.2,1269.4 92.6,1269.4 106.3,724.9 102.9,724.8 114.7,172.2 167.7,172.8 168.4,152.0 572.1,188.3 814.9,48.4 1539.2,172.1 1534.8,423.4 1610.7,522.8 1549.2,545.7 1547.9,726.9 1635.5,1105.6 1629.3,1847.0 1212.8,1843.0 724.9,1836.0 406.8,1833.4 89.0,1827.4 81.0,1752.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0154/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[512.0,176.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.5679355,42.0817438]}},{"type":"Feature","properties":{"resourceCoords":[85.0,1790.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.5719172,42.081732]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0155__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p155 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"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":"4597.6"},{"label":"split_canvas_w","value":"6784.0"},{"label":"split_canvas_h","value":"3318.4"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0155__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0155","type":"ImageService3","width":1696,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"91.0,1212.2 86.0,1389.9 63.8,1978.0 84.0,1978.0 91.2,1858.2 685.8,1865.8 788.2,1924.2 849.3,1901.0 878.7,1759.7 1064.2,1800.7 1335.4,1754.5 1393.4,1832.5 1584.6,1851.5 1618.3,1813.2 1625.5,1479.5 1626.3,1290.7 1631.6,1196.9 1301.2,1258.9 749.9,1176.5 95.7,1216.0 91.0,1212.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0155__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[476.0,1188.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.541849,42.089288]}},{"type":"Feature","properties":{"resourceCoords":[1240.0,1188.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.54008,42.089634]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0155__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p155 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.91"},{"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":"6784.0"},{"label":"split_canvas_h","value":"4597.6"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0155__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0155","type":"ImageService3","width":1696,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"151.3,801.8 163.1,991.7 233.6,993.6 264.4,1079.1 823.4,1093.0 822.6,1018.0 1318.5,1023.2 1392.3,1061.8 1390.3,830.4 1377.6,735.3 1344.7,625.0 1281.4,494.6 1215.9,387.3 1034.3,148.1 922.5,1.0 921.0,1.0 912.0,15.0 869.0,17.0 869.0,15.2 864.1,15.2 864.0,17.0 794.5,15.6 21.9,608.1 151.3,801.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0155__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[249.0,1036.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.571694,42.0845635]}},{"type":"Feature","properties":{"resourceCoords":[1179.0,338.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.570038,42.086192]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0156__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p156 [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":"6804.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0156__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0156","type":"ImageService3","width":1701,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"520.1,1691.7 495.0,1694.3 594.1,1754.6 610.0,1747.0 628.2,1929.8 1003.8,1832.9 1318.0,1757.2 1300.2,1724.7 1700.0,1676.4 1700.0,1671.0 1700.0,1575.4 1597.1,1386.4 1356.1,944.0 982.4,242.9 870.3,16.6 855.0,15.0 854.7,10.2 850.0,14.0 840.0,18.0 801.0,14.9 752.5,15.8 743.0,19.0 690.0,17.0 683.0,8.0 668.6,6.5 668.0,16.0 629.0,13.0 628.5,7.2 569.2,8.3 569.0,11.0 527.0,15.0 525.4,9.1 517.0,9.2 516.0,16.0 465.0,18.0 453.0,16.0 453.0,10.4 431.5,10.8 431.0,21.0 353.0,20.0 351.8,12.2 335.0,19.0 263.5,18.3 18.1,130.6 117.7,283.6 24.5,297.3 279.9,492.4 424.0,668.6 467.5,739.8 517.8,879.4 535.2,973.7 554.5,1167.0 603.7,1683.1 520.1,1691.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0156__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[538.0,1153.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.57201041189327,42.0872531007099]}},{"type":"Feature","properties":{"resourceCoords":[1316.0,1757.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56968773025713,42.08755156918946]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0157/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p157","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0157/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0157","type":"ImageService3","width":1696,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"366.1,1129.7 352.6,1038.1 319.4,931.9 256.7,806.9 192.0,704.1 13.6,475.4 273.2,198.9 425.2,42.2 875.2,124.1 835.2,165.5 1428.8,85.8 1432.8,546.2 1502.9,545.9 1542.2,955.5 1457.7,955.4 1451.3,1337.9 1448.4,1937.3 506.4,1931.6 364.7,1926.8 371.0,1353.1 366.1,1129.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0157/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[922.0,970.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56802711573147,42.0860114558958]}},{"type":"Feature","properties":{"resourceCoords":[1462.0,970.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56675249109009,42.08627053428656]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0158__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p158 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"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":"6768.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0158__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0158","type":"ImageService3","width":1692,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"191.0,81.3 202.2,541.1 272.1,539.7 317.8,948.2 233.4,949.5 232.9,1331.7 239.4,1930.5 1259.2,1920.8 1261.2,1926.1 1438.8,1924.5 1433.0,1435.8 1432.0,1201.1 1430.6,924.0 1417.0,669.0 1231.0,571.2 1105.8,505.4 1044.4,473.8 964.4,431.7 841.7,389.2 735.8,352.6 717.7,346.3 717.7,346.3 684.3,302.4 659.5,269.9 271.3,62.7 172.9,10.3 169.4,10.3 125.6,10.7 124.3,91.3 191.0,81.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0158__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[543.0,206.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56649113739027,42.08774342204562]}},{"type":"Feature","properties":{"resourceCoords":[650.0,952.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56578207315039,42.08647830407069]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0158__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p158 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.68"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2574.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4193.2"},{"label":"split_canvas_h","value":"2733.6"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0158__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0158","type":"ImageService3","width":1692,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"795.4,283.0 733.0,351.6 766.4,363.1 1192.5,427.1 1152.7,470.9 1691.0,381.4 1691.0,271.6 1451.1,143.9 1287.2,59.4 1252.2,31.0 1239.0,34.5 1211.6,20.3 1044.8,20.0 762.3,266.0 795.4,283.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0158__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[794.6,277.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.5696892007346,42.0875635784437]}},{"type":"Feature","properties":{"resourceCoords":[1436.2,152.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56827298113542,42.08804369811104]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0159/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p159","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"22"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0159/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0159","type":"ImageService3","width":1701,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1193.2,1784.8 1211.6,1777.8 1443.0,1690.0 1533.8,1670.5 1602.9,1655.1 1628.8,1649.5 1657.3,592.6 1573.4,318.1 1573.8,258.3 1028.7,324.1 901.5,335.4 624.1,322.6 610.2,358.9 583.8,428.5 73.0,1775.7 1.0,1965.4 1.0,1978.0 44.9,1978.0 224.7,1940.7 656.0,1854.9 1097.3,1762.9 1193.2,1784.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0159/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[517.0,1884.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.5675534,42.087932]}},{"type":"Feature","properties":{"resourceCoords":[1287.0,293.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.564256,42.089895]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0160/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p160","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0160/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0160","type":"ImageService3","width":1701,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"611.6,1779.0 427.0,1588.0 214.3,1638.0 97.4,1665.6 105.5,592.3 14.9,315.3 14.2,254.6 53.6,249.8 136.2,239.9 826.4,355.8 785.0,232.4 1315.1,358.6 1454.0,760.2 1645.1,1327.8 1099.9,1445.1 630.0,1799.9 611.6,1779.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0160/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[427.0,1588.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.564135,42.087324]}},{"type":"Feature","properties":{"resourceCoords":[1263.0,208.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56092,42.088829]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0161/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p161","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0161/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0161","type":"ImageService3","width":1701,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"63.3,748.5 1.0,1088.0 1.0,1160.9 46.9,1166.9 161.7,1185.5 337.8,1181.3 220.8,1219.5 172.0,1225.2 352.5,1351.4 748.3,1565.8 841.8,1619.9 913.6,1660.9 1047.6,1719.3 1247.2,1776.0 1612.8,1862.0 1646.9,1652.4 1585.0,834.5 1652.8,814.7 1636.2,707.2 1587.8,597.7 1533.5,503.2 1374.7,287.8 1366.8,276.3 1346.8,293.2 1250.2,373.1 461.4,312.0 373.1,202.8 418.3,168.1 360.8,187.6 222.1,16.1 221.6,16.1 219.9,16.1 315.7,201.8 317.6,201.2 330.2,235.7 249.7,297.5 166.0,361.2 158.3,367.1 116.4,398.9 114.5,441.7 113.4,452.9 112.7,459.5 98.7,555.5 97.9,561.2 63.3,748.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0161/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[763.0,1584.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56789773790388,42.091947073537035]}},{"type":"Feature","properties":{"resourceCoords":[1166.0,1800.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56735806305208,42.09122761388524]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0162/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p162","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0162/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0162","type":"ImageService3","width":1698,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"252.4,1870.9 382.5,1870.8 475.7,1863.7 619.5,1940.7 623.3,1924.7 632.0,1888.0 640.9,1850.3 916.6,1826.7 1040.8,1799.0 1570.6,1662.6 1608.6,1653.6 1694.9,1633.3 1509.1,1454.7 1457.8,1281.4 1314.9,759.6 1533.8,540.6 1266.6,594.2 1155.3,220.7 990.5,395.9 848.3,534.4 771.0,585.9 742.5,532.0 587.6,308.7 369.1,1.0 305.8,1.0 250.3,48.3 1.0,264.6 1.0,269.1 4.1,280.4 165.7,497.4 221.1,592.7 270.5,703.2 287.8,811.8 219.4,832.1 285.9,1658.8 252.4,1870.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0162/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[343.0,-39.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56384923549548,42.0934645826001]}},{"type":"Feature","properties":{"resourceCoords":[252.0,1840.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56648757841496,42.090745520408156]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0163/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p163","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0163/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0163","type":"ImageService3","width":1701,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"200.0,464.4 157.2,420.7 207.1,425.2 264.5,121.8 709.1,157.8 707.1,175.6 1135.4,217.3 1136.8,203.3 1521.0,233.9 1447.9,992.6 1427.4,1182.8 1621.4,1183.9 1615.4,1675.1 626.9,1670.1 402.7,1517.3 591.0,1178.0 351.4,1182.8 154.0,1178.0 63.5,1158.8 82.0,1101.1 133.1,835.4 200.0,464.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0163/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[591.0,1178.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.562553,42.092289]}},{"type":"Feature","properties":{"resourceCoords":[154.0,1178.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.563581,42.092118]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0164/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p164","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0164/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0164","type":"ImageService3","width":1701,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1001.4,293.3 1098.7,300.7 1139.9,303.8 1480.8,822.3 1700.0,843.8 1700.0,989.8 1679.0,1021.8 1661.2,1096.2 1695.1,1149.3 1700.0,1187.9 1678.8,1187.8 1213.3,1185.1 1210.0,1674.0 534.2,1671.6 346.2,1672.5 350.1,1183.2 156.8,1182.9 176.4,993.4 245.9,237.5 1001.4,293.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0164/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[920.0,1184.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.558778,42.0929]}},{"type":"Feature","properties":{"resourceCoords":[1210.0,1674.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.557838,42.092152]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0165/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p165","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0165/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0165","type":"ImageService3","width":1696,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"439.6,1465.2 485.4,1346.8 804.4,1771.6 843.1,1669.0 900.0,1668.6 945.6,1719.7 1074.0,1919.8 1116.3,1918.6 1591.5,1905.4 1590.0,1470.5 1594.0,1471.0 1614.1,1036.0 1642.4,1036.8 1648.7,577.3 1657.6,98.9 671.6,85.0 364.1,78.9 88.8,540.2 1.0,694.5 1.0,956.5 439.6,1465.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0165/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[475.0,1309.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56199839148675,42.089226195553145]}},{"type":"Feature","properties":{"resourceCoords":[1641.0,568.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.55966210409915,42.0909960798047]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0166/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p166","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0166/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0166","type":"ImageService3","width":1701,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1476.4,1838.7 1246.6,1844.4 772.8,1865.3 290.5,1885.0 108.5,1892.4 101.6,1458.3 105.5,1458.7 120.2,1024.1 148.5,1024.6 149.0,565.7 152.0,88.0 340.0,87.3 1015.9,90.5 1274.5,91.6 1636.0,85.3 1603.7,484.7 1564.7,941.9 1534.8,1208.5 1700.0,1167.5 1700.0,1173.1 1525.9,1288.0 1481.7,1778.6 1519.8,1835.9 1476.4,1838.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0166/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1007.0,564.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.557612,42.091318]}},{"type":"Feature","properties":{"resourceCoords":[152.0,88.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.559881,42.091822]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0167/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p167","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"19"},{"label":"confidence","value":"1.00"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0167/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0167","type":"ImageService3","width":1700,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1532.7,372.6 1536.4,396.2 1627.8,682.7 1473.2,732.2 1656.1,1258.8 1699.0,1382.4 1699.0,1570.8 1446.7,1475.5 1010.9,1324.0 629.8,1193.5 546.3,1547.2 481.0,1799.0 5.6,1674.0 124.2,1221.2 134.6,1181.4 90.8,1195.8 84.4,1197.8 176.0,1024.3 321.2,472.2 435.1,33.3 677.1,92.8 812.2,110.7 884.4,113.0 1105.2,121.4 1106.7,136.5 1507.2,211.6 1529.5,349.1 1532.7,372.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0167/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[481.0,1799.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.557838,42.092152]}},{"type":"Feature","properties":{"resourceCoords":[1541.0,1511.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.556071,42.090692]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0168/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p168","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"18"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0168/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0168","type":"ImageService3","width":1701,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1547.5,1180.8 1501.6,1189.5 1493.6,1586.5 1485.6,1827.7 45.2,1791.0 52.5,1562.4 51.2,1360.0 41.5,1319.3 214.1,1321.3 446.0,789.0 729.2,152.0 1109.0,152.0 1522.7,158.5 1506.8,965.6 1547.5,1180.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0168/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1109.0,152.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.55184,42.088117]}},{"type":"Feature","properties":{"resourceCoords":[1510.0,787.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.553063,42.08711]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0169/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p169","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0169/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0169","type":"ImageService3","width":1701,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"283.7,1202.5 243.0,704.0 225.2,464.5 206.2,209.0 785.6,208.3 1283.6,438.9 1240.6,587.2 1212.5,792.1 1207.1,905.0 1222.6,1129.9 1492.9,1110.5 1496.3,1110.2 1540.5,1855.3 1198.0,1915.5 774.3,1868.3 167.4,1725.7 69.4,1545.5 138.6,1295.7 102.4,1216.8 283.7,1202.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0169/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1078.0,1166.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56146272693695,42.0854424471139]}},{"type":"Feature","properties":{"resourceCoords":[1263.0,419.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56135108500216,42.08680718747527]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0170__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p170 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"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":"6804.0"},{"label":"split_canvas_h","value":"4484.8"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0170__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0170","type":"ImageService3","width":1701,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"112.8,1005.0 838.1,1101.9 1284.3,1044.2 1627.8,1075.8 1639.0,1120.2 1645.0,1120.2 1656.7,1120.2 1620.1,1033.6 1470.0,652.5 1388.1,451.7 1344.8,313.6 1312.4,246.7 1216.7,248.0 993.3,137.2 990.8,224.4 939.9,270.6 543.6,268.6 217.2,264.6 132.2,263.4 112.8,1005.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0170__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[120.0,262.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56053128761067,42.08567114299172]}},{"type":"Feature","properties":{"resourceCoords":[1335.0,262.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.55770860138749,42.08624523849885]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0171/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p171","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0171/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0171","type":"ImageService3","width":1696,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"426.7,1703.3 751.5,1697.1 1145.7,1686.8 1194.8,1639.2 1194.6,1552.5 1420.2,1655.7 1515.3,1651.5 1327.3,1239.8 1198.0,971.2 1152.3,884.1 1474.5,876.5 1541.0,236.1 1496.6,237.1 840.0,251.0 797.8,251.9 671.0,51.3 626.7,1.0 568.6,1.0 381.5,488.2 168.1,1030.5 117.7,1174.7 79.0,1375.5 67.6,1486.6 70.9,1709.6 338.8,1704.8 426.7,1703.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0171/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1187.0,924.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.55895606171559,42.08739361872793]}},{"type":"Feature","properties":{"resourceCoords":[337.0,1696.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.56051930044926,42.085687610905545]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0172/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p172","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0172/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0172","type":"ImageService3","width":1701,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"386.0,1660.7 207.4,1244.2 84.3,972.1 40.5,883.8 363.4,883.8 445.1,244.1 883.9,244.8 1358.8,244.2 1342.5,1694.0 1026.4,1687.1 810.1,1689.0 789.1,1709.7 605.4,1721.3 611.4,1796.8 630.5,1839.3 673.0,1886.0 514.2,1810.9 418.9,1727.1 386.0,1660.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0172/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[882.0,936.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.55706228838329,42.08774591793731]}},{"type":"Feature","properties":{"resourceCoords":[1355.0,936.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.5559573246669,42.087963850458834]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0173__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p173 [2]","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.99"},{"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":"6804.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0173__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0173","type":"ImageService3","width":1701,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"177.6,590.8 88.7,738.6 430.4,1207.3 836.4,1773.1 893.8,1874.1 1204.8,1918.8 1204.6,1906.0 1454.8,1947.7 1574.3,1805.0 1650.3,1820.7 1656.5,950.1 1684.0,926.4 1684.0,874.4 1531.5,606.1 1474.0,599.1 1536.0,226.6 1530.1,225.3 1506.8,221.1 1209.6,212.6 1214.0,52.0 662.9,50.3 517.0,45.1 514.0,49.8 306.6,49.0 1.0,429.6 1.0,499.8 137.6,578.6 177.6,590.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0173__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[606.0,1451.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.553044,42.088881]}},{"type":"Feature","properties":{"resourceCoords":[1214.0,52.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.55447,42.091426]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0174/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p174","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0174/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0174","type":"ImageService3","width":1701,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"385.9,1814.7 199.3,1479.8 215.2,1471.8 338.1,1405.3 276.9,1000.9 290.7,994.4 261.6,899.6 225.7,782.4 204.1,713.3 176.3,579.3 152.8,330.3 175.2,328.5 401.1,310.7 508.0,302.3 271.3,160.4 451.8,14.2 452.0,16.0 478.0,17.0 504.6,12.2 495.0,48.2 969.8,42.0 1127.1,123.8 1535.8,154.8 1552.2,378.6 1617.8,402.5 1654.6,529.6 1552.3,1769.8 778.2,1843.6 763.9,1919.3 759.7,1941.7 726.8,1900.4 436.0,1783.9 385.9,1814.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0174/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[141.0,324.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.55412104191481,42.09365233504445]}},{"type":"Feature","properties":{"resourceCoords":[1256.0,1190.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.55119792028077,42.09238332371888]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0175/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p175","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0175/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0175","type":"ImageService3","width":1691,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"111.7,236.2 250.6,344.0 219.1,289.2 209.7,243.4 220.1,168.3 402.2,196.8 427.3,181.2 639.2,226.2 946.8,301.4 1183.1,358.4 1573.3,447.3 1555.4,1491.8 1625.4,1553.1 757.8,1679.7 462.6,1719.8 300.9,1768.1 297.4,1740.0 170.8,1411.5 155.5,982.0 172.8,985.7 155.2,893.5 88.1,490.4 50.0,277.4 36.5,133.6 111.7,236.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0175/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[744.0,1673.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.55442793711411,42.08429520002825]}},{"type":"Feature","properties":{"resourceCoords":[1610.0,1559.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.5526984067709,42.08518996006238]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0176__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p176 [2]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.99"},{"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":"6768.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0176__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0176","type":"ImageService3","width":1692,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"676.0,1701.0 1014.1,1864.9 1040.8,1812.4 1178.6,1926.6 1530.5,1968.3 1530.0,1959.0 1556.5,1958.8 1578.0,1951.0 1583.2,807.0 1591.6,266.5 1119.8,171.7 1109.4,97.4 1095.1,166.8 374.8,15.7 372.0,17.0 345.0,17.0 340.0,11.0 340.0,8.4 326.0,5.5 326.0,9.0 319.0,10.0 318.0,15.0 302.0,15.0 300.1,1.0 286.9,1.0 285.0,16.0 224.0,14.0 221.2,1.0 203.0,1.0 203.0,13.0 196.0,16.0 79.6,15.1 79.3,996.1 150.2,1056.2 716.5,1536.0 700.1,1535.8 668.9,1714.9 676.0,1701.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0176__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1578.0,1951.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.548619,42.084914]}},{"type":"Feature","properties":{"resourceCoords":[791.0,101.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.552312,42.0872579]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0177/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p177","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0177/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0177","type":"ImageService3","width":1698,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"809.6,1978.0 885.0,1978.0 1045.4,1521.9 1582.0,1606.0 1624.4,1415.3 1630.2,1356.3 1600.5,1184.7 1571.7,1073.2 1542.4,1078.3 1478.4,676.6 1474.0,677.4 1576.8,118.0 1550.0,108.5 1554.1,98.3 1303.3,57.9 957.5,253.0 640.2,154.6 445.8,277.8 149.9,148.2 65.7,337.9 47.8,911.9 1.0,921.2 1.0,1000.5 165.9,1089.3 175.6,1345.8 188.2,1343.2 207.4,1660.5 119.0,1738.0 482.7,1861.3 809.6,1978.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0177/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[119.0,1738.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.55209,42.088777]}},{"type":"Feature","properties":{"resourceCoords":[1582.0,1606.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.549838,42.086756]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0178/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p178","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0178/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0178","type":"ImageService3","width":1701,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"565.6,1926.6 287.9,1751.1 79.6,1870.1 56.9,1532.2 70.8,382.8 265.4,399.7 324.7,397.6 490.9,345.6 597.6,302.3 588.7,273.9 978.4,157.6 977.1,153.2 1545.1,181.4 1527.3,265.1 1360.5,991.1 1258.2,1042.3 1312.7,1200.5 1311.0,1329.0 980.5,1192.7 921.8,1264.8 1024.7,1567.3 565.6,1926.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0178/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[68.0,1202.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.54895387702433,42.08544883175967]}},{"type":"Feature","properties":{"resourceCoords":[877.0,1143.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.54728167585951,42.086195256855916]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0179__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p179 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"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":"6804.0"},{"label":"split_canvas_h","value":"7916.0"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0179__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0179","type":"ImageService3","width":1701,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1029.7,1948.8 979.9,1369.6 963.2,1156.2 1260.0,1169.3 1261.3,1144.8 1671.3,672.5 1675.0,586.7 1664.7,590.9 1641.6,38.3 984.2,36.1 972.6,65.4 665.9,61.8 520.5,402.2 290.1,244.1 206.5,560.1 381.8,722.3 89.3,836.5 161.5,1233.9 92.7,1399.2 150.7,1409.2 93.2,1780.5 1029.7,1948.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0179__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[96.0,824.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.5485580232056,42.084870071374624]}},{"type":"Feature","properties":{"resourceCoords":[890.0,1141.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.54900156416349,42.08337211381595]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0180/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p180","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0180/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0180","type":"ImageService3","width":1701,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1591.9,979.9 1545.1,860.4 1510.5,790.3 1510.5,581.5 1503.0,271.0 608.8,12.2 527.0,13.9 428.0,16.0 425.2,1.0 424.5,1.0 65.1,644.5 368.0,1461.0 468.2,1739.3 548.6,1886.4 551.1,1892.7 913.1,1855.4 1537.2,1895.0 1490.9,1781.2 1506.7,1421.9 1511.2,1011.0 1591.9,979.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0180/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[368.0,1461.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.554391,42.084296]}},{"type":"Feature","properties":{"resourceCoords":[1503.0,271.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.550873,42.082889]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0181/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p181","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0181/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0181","type":"ImageService3","width":1686,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"732.1,35.2 454.2,152.0 204.0,195.8 150.6,154.8 146.5,406.0 76.7,361.9 72.0,527.9 105.4,501.3 145.8,520.1 152.2,730.6 43.1,1155.8 106.0,1872.8 339.1,1900.7 396.4,1850.4 519.7,1935.4 1506.8,1938.2 1511.4,1978.0 1520.2,1978.0 1553.6,1978.0 1558.5,1355.8 1563.4,1083.6 1577.6,308.9 1198.8,149.9 874.2,1.0 748.7,1.0 732.1,35.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0181/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[424.0,535.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.55449370365628,42.0809323573802]}},{"type":"Feature","properties":{"resourceCoords":[1572.0,295.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.55263348379766,42.082535801551664]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0182/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p182","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0182/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0182","type":"ImageService3","width":1701,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"88.5,20.0 217.0,20.0 263.1,16.1 295.0,15.0 295.0,13.4 297.5,14.4 298.0,17.0 303.5,16.7 489.7,89.5 782.0,196.0 1317.2,416.9 1513.7,499.9 1366.3,756.4 1387.4,768.8 1617.7,1347.7 1692.0,1390.3 1649.5,1888.7 1600.1,1917.3 313.1,1938.8 79.2,1876.5 44.5,1606.2 86.7,1605.7 83.6,982.3 84.9,709.6 88.5,20.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0182/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[782.0,196.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.550873,42.082889]}},{"type":"Feature","properties":{"resourceCoords":[990.0,1431.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.548677,42.08133]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0183/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p183","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0183/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0183","type":"ImageService3","width":1701,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,570.4 1.0,601.8 90.0,567.1 142.1,809.3 73.5,847.1 133.9,949.3 63.2,1049.0 70.8,1262.5 121.1,1282.3 136.4,1317.5 63.5,1371.5 143.9,1530.9 67.0,1708.8 97.6,1886.5 418.1,1948.0 745.8,1900.5 1651.9,1935.8 1640.2,1346.9 1700.0,1330.7 1700.0,1245.3 1681.2,1208.3 1616.8,742.2 1662.2,720.2 1544.8,343.4 1496.2,356.6 1394.7,16.2 1302.3,16.0 1133.0,284.6 296.6,92.3 286.2,461.8 1.0,570.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0183/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[858.0,732.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.54558494237165,42.08498610193133]}},{"type":"Feature","properties":{"resourceCoords":[276.0,167.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.54721885229671,42.08417751569448]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0184/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Springfield, Massachusetts | 1911 | sanborn03858_004 p184","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:41:31Z","modified":"2026-10-24T15:41:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0184/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0184","type":"ImageService3","width":1701,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"623.1,1953.7 623.7,1933.8 1206.0,1955.1 1382.0,1959.8 1459.7,1861.5 1627.2,1874.3 1649.2,1701.5 1628.4,181.3 1660.3,144.4 1412.0,190.7 1412.5,179.9 1299.0,180.1 558.4,170.0 487.2,81.3 344.9,167.4 219.7,192.7 269.1,202.9 203.6,592.3 153.1,591.5 1.0,1033.8 1.0,1162.7 40.7,1170.8 92.2,1922.3 623.1,1953.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764sm:g03858191102:03858_02_1911-0184/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1406.0,982.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.545029,42.088669]}},{"type":"Feature","properties":{"resourceCoords":[1406.0,600.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.545923,42.088495]}}]}}]}