{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn04240_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Ypsilanti, Michigan | 1909 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"27"},{"label":"placed","value":"16"},{"label":"unplaced","value":"11"},{"label":"fit sources","value":"georef 7, georef-snap 7, snap:0 1, snap:2 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"6 sheet(s) cut into 18 panels"},{"label":"unplaced pages","value":"p12__2 (tier 1, 42.24979,-83.60827 +/-106m); p14__2 (tier 1, 42.24039,-83.61010 +/-242m); p15__1 (tier 1, 42.23488,-83.60876 +/-100m); p15__2 (tier 1, 42.24965,-83.61147 +/-158m); p15__3 (tier 1, 42.23365,-83.60200 +/-100m); p15__4 (tier 1, 42.23300,-83.60261 +/-118m); p15__5 (tier 1, 42.23333,-83.60273 +/-115m); p16__1 (tier 1, 42.25501,-83.62250 +/-128m); p16__2 (tier 1, 42.25356,-83.62228 +/-166m); p16__3 (tier 1, 42.24147,-83.60633 +/-120m); p16__4 (tier 1, 42.25589,-83.62182 +/-110m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ypsilanti, Michigan | 1909 | sanborn04240_004 p10","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:42:39Z","modified":"2026-10-19T12:42:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0010","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1111.9,1812.3 842.0,1812.0 63.9,1803.8 66.3,1253.0 71.0,661.3 64.6,623.3 81.1,288.2 153.8,230.0 838.8,272.3 1060.7,239.6 1159.7,71.8 1285.5,44.6 1490.8,107.5 1526.0,84.1 1519.9,349.5 1542.4,452.5 1539.7,634.8 1536.6,1225.7 1483.5,1225.2 1476.2,1816.7 1111.9,1812.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[842.0,1218.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.6145756,42.2422473]}},{"type":"Feature","properties":{"resourceCoords":[842.0,1812.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.6160433,42.242227]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ypsilanti, Michigan | 1909 | sanborn04240_004 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.77"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:42:39Z","modified":"2026-10-19T12:42:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0011","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"898.5,1815.5 293.4,1816.8 56.9,1813.3 62.0,1221.4 114.8,1221.8 115.8,630.4 117.8,448.0 95.0,345.0 100.2,79.3 161.5,37.9 674.7,23.4 1552.5,117.7 1579.1,1771.1 1527.0,1829.4 898.5,1839.8 898.5,1815.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0011/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.61154999905911,42.241221398853035]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.61148989505487,42.23822426231613]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.61624825872936,42.23817122189896]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.61630836273359,42.241168358435864]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0012__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ypsilanti, Michigan | 1909 | sanborn04240_004 p12 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.71"},{"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":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-19T12:42:39Z","modified":"2026-10-19T12:42:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0012__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0012","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1568.5,666.9 1398.9,665.8 1398.9,512.4 1378.6,1.0 1378.4,1.0 1362.0,90.3 1293.0,41.0 97.4,65.0 55.2,1656.0 338.8,1811.4 797.6,1794.7 961.0,1400.1 1094.5,1241.5 1497.5,1245.1 1514.8,870.0 1583.9,880.2 1568.5,666.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0012__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[107.0,634.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.6086104,42.2468839]}},{"type":"Feature","properties":{"resourceCoords":[570.0,154.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.6073408,42.2459936]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0013__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ypsilanti, Michigan | 1909 | sanborn04240_004 p13 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.85"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-19T12:42:39Z","modified":"2026-10-19T12:42:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0013__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0013","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"100.8,256.9 38.6,700.9 102.5,1316.3 66.5,1538.1 123.6,1688.4 452.6,1803.2 1289.8,1775.4 1290.9,1804.2 1298.1,1804.2 1296.8,1577.8 1290.0,1525.0 975.2,1510.3 946.6,1453.0 997.7,458.5 999.8,451.0 1088.2,451.0 1107.0,451.0 1305.4,437.4 1326.9,373.0 1291.4,72.4 1027.0,37.2 477.9,63.5 320.0,64.7 320.3,239.3 100.8,256.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0013__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[880.0,1346.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.60723387346835,42.24196107567096]}},{"type":"Feature","properties":{"resourceCoords":[360.0,80.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.60856122342692,42.24434692828781]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0013__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ypsilanti, Michigan | 1909 | sanborn04240_004 p13 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.86"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3999.2"},{"label":"split_canvas_y","value":"1804.0"},{"label":"split_canvas_w","value":"2512.8"},{"label":"split_canvas_h","value":"4206.0"}],"created":"2026-10-19T12:42:39Z","modified":"2026-10-19T12:42:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0013__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0013","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1037.3,714.9 1037.0,938.7 1029.9,938.7 1045.7,1475.9 1575.0,1480.2 1554.7,490.2 1060.7,486.2 1037.0,626.8 1037.3,714.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0013__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1036.8,490.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.606178,42.241954]}},{"type":"Feature","properties":{"resourceCoords":[1036.8,1393.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.6061592,42.2402303]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0014__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ypsilanti, Michigan | 1909 | sanborn04240_004 p14 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"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":"2696.0"},{"label":"split_canvas_h","value":"1670.0"}],"created":"2026-10-19T12:42:39Z","modified":"2026-10-19T12:42:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0014__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0014","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"77.0,70.6 76.3,30.5 31.2,30.3 16.0,77.8 47.2,416.5 76.3,416.5 75.5,269.4 77.0,70.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0014__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[640.0,46.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.61451984479385,42.236311885271455]}},{"type":"Feature","properties":{"resourceCoords":[90.0,46.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.61593100387441,42.23630380345481]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0014__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ypsilanti, Michigan | 1909 | sanborn04240_004 p14 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.18"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2703.6"},{"label":"split_canvas_y","value":"4372.0"},{"label":"split_canvas_w","value":"3808.4"},{"label":"split_canvas_h","value":"3336.0"}],"created":"2026-10-19T12:42:39Z","modified":"2026-10-19T12:42:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0014__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0014","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"718.0,1687.5 728.3,1777.7 678.5,1925.4 1608.0,1919.9 1608.0,1897.0 1609.8,1896.9 1592.2,1141.0 1318.1,1108.1 1156.5,1183.8 1111.2,1118.3 741.5,1123.3 692.6,1287.8 739.6,1287.0 748.2,1686.8 718.0,1687.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0014__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[675.9,1093.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.61611680913727,42.236690580023]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1093.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.61377098950257,42.2366665460602]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.61379919849708,42.235135886192836]}},{"type":"Feature","properties":{"resourceCoords":[675.9,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-83.61614501813177,42.23515992015564]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ypsilanti, Michigan | 1909 | sanborn04240_004 p2 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.94"},{"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":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-19T12:42:39Z","modified":"2026-10-19T12:42:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"106.6,64.0 44.2,235.6 59.8,883.7 120.4,1102.1 32.6,1734.5 1.0,1756.7 1.0,1918.6 32.5,1926.0 190.9,1926.0 218.1,1852.9 776.7,1877.7 1140.1,1794.4 1538.2,1890.6 1594.8,1809.1 1598.2,1029.2 1495.6,774.5 1521.9,668.0 1435.3,579.2 1204.7,582.3 1197.6,576.0 1191.8,576.0 1191.8,570.8 1097.3,486.8 1161.2,262.2 1121.8,73.5 690.2,44.5 691.9,100.1 643.8,100.2 285.8,66.5 282.6,42.1 106.6,64.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[690.0,1023.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.6149703,42.2490577]}},{"type":"Feature","properties":{"resourceCoords":[205.0,1023.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.6161247,42.2487855]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ypsilanti, Michigan | 1909 | sanborn04240_004 p2 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.62"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4739.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1772.4"},{"label":"split_canvas_h","value":"2304.0"}],"created":"2026-10-19T12:42:39Z","modified":"2026-10-19T12:42:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1190.3,452.6 1190.5,472.6 1190.6,477.4 1545.9,554.0 1594.1,559.8 1599.1,503.6 1573.5,498.8 1544.3,242.1 1605.3,107.6 1503.4,28.8 1397.3,12.9 1331.4,104.5 1212.5,99.0 1222.2,452.4 1190.3,452.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1248.8,533.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.61647008452748,42.25046776222772]}},{"type":"Feature","properties":{"resourceCoords":[1597.1,533.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.61568616811711,42.250731556789184]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ypsilanti, Michigan | 1909 | sanborn04240_004 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.59"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:42:39Z","modified":"2026-10-19T12:42:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0003","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1595.5,498.4 1588.9,1209.2 1583.1,1642.4 1574.6,1854.0 747.2,1898.8 350.0,1835.0 323.0,1866.8 73.5,1882.8 28.3,86.7 80.9,29.4 628.6,16.0 628.4,27.0 1293.3,27.1 1601.0,28.5 1595.5,498.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[544.0,46.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.62063513194408,42.24769143286176]}},{"type":"Feature","properties":{"resourceCoords":[1578.0,46.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.62057393939165,42.24578770927884]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ypsilanti, Michigan | 1909 | sanborn04240_004 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:42:39Z","modified":"2026-10-19T12:42:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0004","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1497.2,1838.0 1513.0,1345.9 1517.8,1258.8 1524.2,973.9 1535.5,645.3 1526.0,53.5 503.3,53.9 265.8,55.8 265.4,1.0 218.3,1.0 95.0,39.7 61.0,102.3 115.1,1219.6 61.0,1851.4 1.0,1854.0 1.0,1865.1 667.0,1852.2 975.8,1847.5 1201.3,1840.5 1497.2,1838.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[516.0,1309.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.61919862281053,42.24659411238341]}},{"type":"Feature","properties":{"resourceCoords":[968.0,68.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.61611690700167,42.24577414143965]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ypsilanti, Michigan | 1909 | sanborn04240_004 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:42:39Z","modified":"2026-10-19T12:42:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0005","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"80.8,1868.6 632.5,1866.5 1225.2,1866.3 1263.2,1859.6 1599.0,1873.4 1585.0,1856.3 1572.1,1671.5 1621.0,534.5 1565.1,231.1 1411.9,52.2 333.9,11.3 334.5,1.0 86.2,1.0 86.6,238.8 80.6,1266.5 80.8,1868.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1120.0,697.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.61352541066056,42.24581013115466]}},{"type":"Feature","properties":{"resourceCoords":[110.0,237.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.6160291033945,42.24663084490145]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ypsilanti, Michigan | 1909 | sanborn04240_004 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:42:39Z","modified":"2026-10-19T12:42:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0006","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"116.0,1600.4 119.8,1175.0 123.2,476.9 126.7,15.5 347.4,11.9 637.1,13.9 1168.7,19.1 1438.2,19.6 1476.4,19.6 1522.2,1108.8 1502.2,1109.3 1549.0,1656.4 1587.9,1657.5 1583.4,1888.7 950.2,1887.9 218.1,1801.8 108.5,1808.2 116.0,1600.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[118.0,1130.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.62335249672931,42.24572170170908]}},{"type":"Feature","properties":{"resourceCoords":[118.0,30.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.62056620401168,42.24576174803761]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ypsilanti, Michigan | 1909 | sanborn04240_004 p7","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:42:39Z","modified":"2026-10-19T12:42:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0007","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"205.8,1665.8 167.3,1665.1 116.4,1123.5 136.2,1122.8 81.8,44.2 82.5,44.2 623.0,41.0 623.0,53.5 1239.8,76.1 1239.7,48.5 1627.0,92.2 1627.0,116.7 1605.2,119.0 1536.6,517.3 1624.5,945.8 1616.4,1679.7 1565.8,1743.2 1593.2,1843.3 1535.7,1885.4 203.2,1894.9 205.8,1665.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[623.0,1114.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.6231934,42.242168]}},{"type":"Feature","properties":{"resourceCoords":[623.0,41.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.6204494,42.2421905]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ypsilanti, Michigan | 1909 | sanborn04240_004 p8","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:42:39Z","modified":"2026-10-19T12:42:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0008","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1518.1,593.1 1520.5,1250.6 1518.0,1828.0 961.8,1832.4 922.1,1832.8 647.3,1835.2 105.3,1835.5 123.5,1344.5 128.7,1257.6 136.4,973.4 149.4,645.5 142.8,54.9 740.5,53.9 1514.4,54.7 1518.1,593.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1518.0,646.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.6175124,42.2422104]}},{"type":"Feature","properties":{"resourceCoords":[1518.0,1828.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.6204494,42.2421905]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ypsilanti, Michigan | 1909 | sanborn04240_004 p9","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T12:42:39Z","modified":"2026-10-19T12:42:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0009","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"153.2,1238.5 153.3,580.0 151.6,40.8 420.5,39.6 783.4,41.9 1020.5,44.9 1627.0,42.4 1627.0,66.5 1551.7,67.9 1519.2,309.9 1609.1,744.4 1583.8,993.8 1552.8,1118.3 1368.9,1138.0 1335.8,1431.3 1547.6,1522.2 1594.7,1853.3 1183.3,1896.8 1183.3,1871.5 784.1,1825.8 784.2,1854.2 148.6,1829.6 148.5,1816.8 153.2,1238.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114ym:g042401909:04240_1909-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[153.0,633.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.6175124,42.2422104]}},{"type":"Feature","properties":{"resourceCoords":[153.0,1281.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.61912,42.242195]}}]}}]}