{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn04021_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Grand Haven, Michigan | 1883 | 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":"28"},{"label":"placed","value":"9"},{"label":"unplaced","value":"19"},{"label":"fit sources","value":"georef 5, georef-snap 2, snap:0 1, snap:1 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"8 sheet(s) cut into 19 panels"},{"label":"unplaced pages","value":"p10 (tier 4, 43.07007,-86.21862 +/-1792m); p11 (tier 1, 43.07925,-86.20010 +/-263m); p12 (tier 1, 43.07577,-86.20051 +/-254m); p14__1 (tier 4, 43.07007,-86.21862 +/-1792m); p14__3 (tier 4, 43.07007,-86.21862 +/-1792m); p16 (tier 4, 43.07007,-86.21862 +/-1792m); p17 (tier 4, 43.07007,-86.21862 +/-1792m); p18__1 (tier 4, 43.07007,-86.21862 +/-1792m); p18__2 (tier 4, 43.07007,-86.21862 +/-1792m); p5__2 (tier 4, 43.07007,-86.21862 +/-1792m); p6__1 (tier 4, 43.07007,-86.21862 +/-1792m); p6__2 (tier 4, 43.07007,-86.21862 +/-1792m); p7__1 (tier 4, 43.07007,-86.21862 +/-1792m); p7__2 (tier 4, 43.07007,-86.21862 +/-1792m); p7__3 (tier 4, 43.07007,-86.21862 +/-1792m); p8__1 (tier 4, 43.07007,-86.21862 +/-1792m); p8__2 (tier 4, 43.07007,-86.21862 +/-1792m); p9__1 (tier 4, 43.07007,-86.21862 +/-1792m); p9__2 (tier 4, 43.07007,-86.21862 +/-1792m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Grand Haven, Michigan | 1883 | sanborn04021_001 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.78"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:28:09Z","modified":"2026-10-19T23:28:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0013","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1573.6,404.4 1567.5,662.4 1557.6,1251.2 1560.2,1251.2 1550.8,1920.0 1517.0,1920.0 1518.6,1883.9 244.3,1874.8 72.8,1830.6 17.1,1601.1 35.1,1092.9 56.0,1171.8 56.1,162.3 106.9,62.4 930.5,25.4 1502.6,122.5 1574.4,121.8 1573.6,404.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1081.0,91.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.20191464413398,43.07777074532302]}},{"type":"Feature","properties":{"resourceCoords":[1543.0,91.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.20072289964001,43.077776981190055]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0014__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Grand Haven, Michigan | 1883 | sanborn04021_001 p14 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.76"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1538.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4986.0"},{"label":"split_canvas_h","value":"7684.0"}],"created":"2026-10-19T23:28:09Z","modified":"2026-10-19T23:28:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0014__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0014","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1549.4,309.3 1542.9,141.8 1448.0,81.4 991.8,63.5 717.1,138.3 663.4,403.9 709.1,665.5 642.0,952.9 636.3,953.4 636.3,955.0 611.2,955.4 471.8,966.7 426.1,1075.2 467.5,1806.8 748.0,1794.7 1004.3,1788.9 1589.0,1771.8 1587.2,1726.9 1570.8,1267.0 1541.8,629.2 1530.2,310.8 1549.4,309.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0014__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[423.5,1807.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.2006375,43.0778029]}},{"type":"Feature","properties":{"resourceCoords":[1536.0,431.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1971807,43.0755929]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Grand Haven, Michigan | 1883 | sanborn04021_001 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.23"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:28:09Z","modified":"2026-10-19T23:28:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0015","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"157.9,35.5 635.9,56.4 1299.0,78.9 1630.0,93.0 1630.0,100.2 1630.0,113.0 1594.5,177.7 1624.0,362.6 1558.0,529.0 1616.1,920.9 1547.5,1880.9 96.8,1880.8 18.4,1076.5 46.4,718.9 81.3,719.0 113.9,33.7 157.9,35.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0015/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.20094473079675,43.07564459086836]}},{"type":"Feature","properties":{"resourceCoords":[1631.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.19687525063345,43.07576608098179]}},{"type":"Feature","properties":{"resourceCoords":[1631.0,1921.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.19668072990466,43.072240255655544]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1921.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.20075021006794,43.07211876554211]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Grand Haven, Michigan | 1883 | sanborn04021_001 p2","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.32"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:28:09Z","modified":"2026-10-19T23:28:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0002","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"103.2,60.3 669.9,34.2 1471.0,30.4 1586.1,72.5 1630.0,464.1 1630.0,475.0 1584.5,1761.0 1630.0,1764.0 1630.0,1781.8 1532.0,1783.8 1063.5,1781.2 556.4,1786.8 115.3,1793.2 112.0,1470.2 118.0,1137.0 114.5,969.8 115.5,602.9 108.6,545.1 35.7,96.4 103.2,60.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1067.0,1137.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.231668,43.066173]}},{"type":"Feature","properties":{"resourceCoords":[118.0,1137.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.2326414,43.0644665]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Grand Haven, Michigan | 1883 | sanborn04021_001 p3 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"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":"2128.4"},{"label":"split_canvas_h","value":"7684.0"}],"created":"2026-10-19T23:28:09Z","modified":"2026-10-19T23:28:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0003","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"72.3,127.0 158.3,1461.8 78.6,1810.9 416.3,1784.5 528.9,970.7 529.2,289.7 467.1,156.6 531.1,142.7 294.4,83.2 294.7,41.6 72.3,127.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[291.1,330.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.225283,43.064233]}},{"type":"Feature","properties":{"resourceCoords":[291.1,1706.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.222074,43.06328]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0003__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Grand Haven, Michigan | 1883 | sanborn04021_001 p3 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.79"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2128.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4395.6"},{"label":"split_canvas_h","value":"7684.0"}],"created":"2026-10-19T23:28:09Z","modified":"2026-10-19T23:28:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0003__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0003","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"980.1,1867.7 980.5,1807.1 1304.8,1810.2 1550.7,1815.5 1551.8,1485.4 1562.6,1144.9 1561.3,974.0 1567.4,599.1 1561.2,540.0 1493.0,80.4 1366.7,145.8 984.2,47.5 696.5,147.6 575.8,302.7 587.2,1662.8 632.0,1850.8 980.1,1867.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0003__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1077.0,1144.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.233115,43.063608]}},{"type":"Feature","properties":{"resourceCoords":[600.1,1144.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.233578,43.062764]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Grand Haven, Michigan | 1883 | sanborn04021_001 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:28:09Z","modified":"2026-10-19T23:28:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0004","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"26.0,109.1 3.9,1911.2 37.8,1897.3 37.8,1798.8 69.5,1775.5 322.9,1899.3 624.1,1863.2 661.7,1800.5 1363.0,1893.0 1363.5,1900.8 1585.0,1815.2 1585.1,1792.8 1589.0,1417.9 1589.8,687.0 1585.3,88.8 1590.7,44.5 1055.1,46.6 589.3,50.1 335.2,46.4 1.0,45.4 1.0,108.0 26.0,109.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[584.0,728.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.22944950578633,43.06348796438305]}},{"type":"Feature","properties":{"resourceCoords":[1569.0,1416.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.22690061812644,43.06469009150818]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Grand Haven, Michigan | 1883 | sanborn04021_001 p5 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.75"},{"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":"6524.0"},{"label":"split_canvas_h","value":"7684.0"}],"created":"2026-10-19T23:28:09Z","modified":"2026-10-19T23:28:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0005","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"131.0,54.0 126.3,97.8 138.1,687.8 146.4,1408.8 147.2,1778.6 147.7,1841.7 407.8,1903.0 793.2,1867.1 847.6,1162.7 1549.5,1155.4 1592.1,534.2 1501.3,282.8 1582.0,232.9 1563.4,170.3 1453.0,76.1 721.0,32.8 721.1,51.4 619.0,54.0 131.0,54.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[619.0,54.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.2295991,43.0665244]}},{"type":"Feature","properties":{"resourceCoords":[131.0,54.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.230086,43.065684]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0007__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Grand Haven, Michigan | 1883 | sanborn04021_001 p7 [4]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.24"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3748.8"},{"label":"split_canvas_y","value":"5380.8"},{"label":"split_canvas_w","value":"2775.2"},{"label":"split_canvas_h","value":"2303.2"}],"created":"2026-10-19T23:28:09Z","modified":"2026-10-19T23:28:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0007__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0007","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1594.1,1872.1 1596.5,1381.0 1031.0,1373.2 1050.4,1593.3 972.7,1595.1 969.4,1751.8 1042.4,1849.7 1303.8,1850.5 1255.6,1901.5 1331.5,1920.0 1363.5,1920.0 1594.1,1872.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211883:04021_1883-0007__4/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[937.2,1345.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.22124336379562,43.08134355774793]}},{"type":"Feature","properties":{"resourceCoords":[1631.0,1345.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.22128631636323,43.08001910421245]}},{"type":"Feature","properties":{"resourceCoords":[1631.0,1921.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.22278076008217,43.080045326605266]}},{"type":"Feature","properties":{"resourceCoords":[937.2,1921.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.22273780751456,43.08136978014075]}}]}}]}