{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn04021_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Grand Haven, Michigan | 1899 | 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":"29"},{"label":"placed","value":"18"},{"label":"unplaced","value":"11"},{"label":"fit sources","value":"georef-snap 10, georef 7, snap:2 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"8 sheet(s) cut into 21 panels"},{"label":"unplaced pages","value":"p12__1 (tier 1, 43.06758,-86.22962 +/-100m); p12__2 (tier 1, 43.06171,-86.21879 +/-100m); p12__3 (tier 1, 43.06194,-86.21842 +/-222m); p12__4 (tier 1, 43.06205,-86.22071 +/-100m); p14__2 (tier 1, 43.07837,-86.20735 +/-216m); p17__1 (tier 4, 43.07076,-86.21728 +/-1925m); p17__2 (tier 4, 43.07076,-86.21728 +/-1925m); p17__3 (tier 4, 43.07076,-86.21728 +/-1925m); p2__2 (tier 1, 43.06382,-86.23453 +/-100m); p2__3 (tier 1, 43.06482,-86.23447 +/-100m); p8__2 (tier 1, 43.06625,-86.22265 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0010/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 | 1899 | sanborn04021_003 p10","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.69"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:35:07Z","modified":"2026-10-19T18:35:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0010","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"16.1,1529.0 27.6,1532.5 107.9,325.4 55.3,353.8 53.5,116.5 84.7,50.4 337.6,19.3 1190.2,31.9 1587.9,152.5 1630.0,559.7 1630.0,562.1 1556.3,863.8 1579.3,862.7 1569.8,1826.9 1559.8,1827.0 1559.5,1920.0 288.6,1920.0 16.1,1529.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[811.0,1582.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.224205,43.067484]}},{"type":"Feature","properties":{"resourceCoords":[811.0,1086.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.224234,43.0683861]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0011/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 | 1899 | sanborn04021_003 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.79"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:35:07Z","modified":"2026-10-19T18:35:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0011","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"636.5,1789.6 673.6,1806.4 671.0,1920.0 741.2,1920.0 767.5,1875.1 850.5,1895.8 845.0,1776.5 976.5,1716.8 1385.2,1739.2 1364.6,1329.0 1395.7,1265.5 1517.9,1262.9 1601.8,748.8 1580.0,561.2 1414.0,389.8 1400.6,173.8 1508.4,170.6 1510.0,127.6 1366.6,122.2 1348.0,42.5 1269.6,25.2 883.8,161.7 670.2,110.5 81.2,130.1 59.0,1063.3 49.3,1063.3 47.8,1154.2 1.0,1153.7 1.0,1494.4 36.5,1510.4 31.1,1536.2 13.7,1577.8 623.2,1821.6 635.0,1793.1 636.5,1789.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[77.0,807.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.22227994511671,43.06755359998303]}},{"type":"Feature","properties":{"resourceCoords":[77.0,1296.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.22223297664637,43.06663532570511]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0013__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 | 1899 | sanborn04021_003 p13 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.84"},{"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":"3160.0"},{"label":"split_canvas_h","value":"2094.8"}],"created":"2026-10-19T18:35:07Z","modified":"2026-10-19T18:35:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0013__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0013","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"762.0,18.6 27.7,44.3 42.8,511.6 759.0,512.4 765.9,451.2 768.9,240.5 771.6,240.5 773.4,1.0 764.7,1.0 762.0,18.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0013__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.21792394950097,43.08118346897816]}},{"type":"Feature","properties":{"resourceCoords":[790.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.21615039890062,43.08045593341372]}},{"type":"Feature","properties":{"resourceCoords":[790.0,523.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.2168094405736,43.07959455630533]}},{"type":"Feature","properties":{"resourceCoords":[0.0,523.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.21858299117395,43.080322091869775]}},{"type":"Feature","properties":{"resourceCoords":[293.0,237.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.2175655,43.0805224]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0013__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 | 1899 | sanborn04021_003 p13 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.68"},{"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":"2026-10-19T18:35:07Z","modified":"2026-10-19T18:35:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0013__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0013","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"31.9,1065.6 38.0,1465.1 65.0,1874.4 949.3,1883.7 1007.1,1796.1 1005.8,1312.8 1568.5,1309.2 1583.5,1277.0 1611.1,366.8 1531.9,159.2 1382.7,166.7 1156.6,46.1 911.1,24.6 868.6,95.8 826.4,62.1 786.4,520.6 786.4,523.7 786.1,523.7 785.8,527.5 83.0,525.7 31.9,826.8 40.3,827.0 34.5,1065.7 31.9,1065.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0013__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[988.0,1070.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.2143168,43.0792139]}},{"type":"Feature","properties":{"resourceCoords":[520.0,1070.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.2153883,43.0796341]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0013__3/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 | 1899 | sanborn04021_003 p13 [3]","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":"4144.4"},{"label":"split_canvas_y","value":"5260.0"},{"label":"split_canvas_w","value":"2379.6"},{"label":"split_canvas_h","value":"2424.0"}],"created":"2026-10-19T18:35:07Z","modified":"2026-10-19T18:35:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0013__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0013","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1040.5,1915.8 1607.5,1916.5 1545.2,1411.6 1194.7,1366.3 1085.7,1423.0 1066.2,1416.7 1040.5,1915.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0013__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1095.1,1377.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.218553407331,43.08241581786096]}},{"type":"Feature","properties":{"resourceCoords":[1564.0,1377.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.21737727018774,43.0824727261902]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0014__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 | 1899 | sanborn04021_003 p14 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.80"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2759.2"},{"label":"split_canvas_w","value":"6524.0"},{"label":"split_canvas_h","value":"4924.8"}],"created":"2026-10-19T18:35:07Z","modified":"2026-10-19T18:35:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0014__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0014","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1521.2,1277.7 754.6,1272.6 705.2,1199.5 741.3,752.0 112.8,705.8 24.7,783.9 1.0,783.5 1.0,1846.1 43.9,1846.8 57.2,1919.2 1184.7,1920.0 1475.0,1920.0 1584.8,1828.0 1578.0,1343.6 1521.2,1277.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0014__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[364.0,1251.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1956962213028,43.07564212375987]}},{"type":"Feature","properties":{"resourceCoords":[1314.0,1677.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1932531349065,43.07487590885613]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0015__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 | 1899 | sanborn04021_003 p15 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.65"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5269.6"},{"label":"split_canvas_w","value":"3511.2"},{"label":"split_canvas_h","value":"2414.4"}],"created":"2026-10-19T18:35:07Z","modified":"2026-10-19T18:35:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0015__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0015","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"172.0,1780.4 189.3,1809.3 190.3,1888.8 190.7,1915.5 849.8,1916.4 860.0,1355.2 788.0,1327.9 30.9,1343.2 18.2,1774.9 172.0,1780.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0015__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1317.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.20178352608256,43.07857849721541]}},{"type":"Feature","properties":{"resourceCoords":[877.8,1317.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.20173821182264,43.08023589932169]}},{"type":"Feature","properties":{"resourceCoords":[877.8,1921.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.20018811763113,43.080212970088326]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1921.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.20023343189105,43.07855556798204]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0015__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 | 1899 | sanborn04021_003 p15 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"6524.0"},{"label":"split_canvas_h","value":"7684.0"}],"created":"2026-10-19T18:35:07Z","modified":"2026-10-19T18:35:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0015__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0015","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1615.3,799.2 1619.7,540.1 1620.0,211.9 1621.9,157.9 1625.3,60.8 1627.5,1.0 1616.5,1.0 1610.0,91.5 1588.5,19.6 1566.9,91.5 1401.6,26.8 963.1,105.7 309.1,69.7 93.4,170.2 50.2,716.5 107.7,738.1 57.3,881.8 71.6,1270.0 869.5,1313.2 870.1,1317.4 872.7,1317.4 872.9,1333.9 955.6,1838.0 1588.1,1874.0 1573.8,1471.5 1588.2,1363.7 1609.8,1360.7 1615.3,799.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0015__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1582.0,215.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.20073512770375,43.077797092936684]}},{"type":"Feature","properties":{"resourceCoords":[1582.0,1397.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.20073446998269,43.07557872615296]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0016__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 | 1899 | sanborn04021_003 p16 [1]","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":"4970.0"},{"label":"split_canvas_w","value":"3008.0"},{"label":"split_canvas_h","value":"2714.0"}],"created":"2026-10-19T18:35:07Z","modified":"2026-10-19T18:35:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0016__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0016","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"51.4,1859.9 402.7,1857.2 478.4,1856.5 514.0,1856.2 728.8,1855.5 695.2,1845.0 708.8,1306.1 198.1,1277.8 198.1,1265.2 62.9,1266.3 55.7,1648.1 51.4,1859.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0016__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[713.0,1830.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.19893628325009,43.0778404732257]}},{"type":"Feature","properties":{"resourceCoords":[87.0,1830.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.20054491259178,43.077857982269215]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0016__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 | 1899 | sanborn04021_003 p16 [2]","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":"0.0"},{"label":"split_canvas_w","value":"6524.0"},{"label":"split_canvas_h","value":"7684.0"}],"created":"2026-10-19T18:35:07Z","modified":"2026-10-19T18:35:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0016__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0016","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"746.5,1242.5 752.0,1242.5 752.0,1289.0 806.0,1741.1 863.0,1799.2 1186.8,1816.5 1359.0,1875.7 1560.6,1870.2 1590.2,1784.2 1630.0,1784.5 1630.0,726.4 1578.1,725.9 1582.4,250.9 1461.8,55.5 811.9,22.3 762.5,30.2 133.2,20.1 130.0,348.8 123.4,608.2 112.9,1170.3 141.8,1166.5 277.9,1239.7 745.8,1236.7 746.5,1242.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0016__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[805.0,49.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1989133249269,43.077760143927975]}},{"type":"Feature","properties":{"resourceCoords":[135.0,1188.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.20060605321203,43.07561423258152]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0002__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 | 1899 | sanborn04021_003 p2 [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":"6524.0"},{"label":"split_canvas_h","value":"7684.0"}],"created":"2026-10-19T18:35:07Z","modified":"2026-10-19T18:35:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0002","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,188.2 1.0,205.6 45.6,212.6 49.9,1857.6 702.6,1868.7 786.8,1704.2 742.6,1524.3 788.5,1230.8 798.5,1192.2 798.5,1192.1 798.5,1192.1 798.5,1192.1 839.0,1191.7 893.7,1191.2 986.3,1156.3 1575.1,1178.7 1620.7,1084.2 1617.0,350.6 1619.2,105.8 1290.8,108.8 951.9,102.2 781.9,105.6 350.1,105.2 349.6,84.4 1.0,188.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1588.0,585.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.2315862903583,43.063145140883314]}},{"type":"Feature","properties":{"resourceCoords":[1588.0,90.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.23108863981014,43.064020966701875]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0003/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 | 1899 | sanborn04021_003 p3","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:35:07Z","modified":"2026-10-19T18:35:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0003","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1315.9,1812.5 264.9,1803.6 176.2,1832.6 176.9,1078.7 180.8,827.2 177.6,181.0 177.2,115.2 857.2,87.2 857.1,94.4 1536.9,136.6 1537.9,290.2 1538.2,332.0 1531.0,825.7 1533.6,1319.7 1516.6,1320.2 1525.7,1811.0 1381.3,1810.4 1381.2,1819.2 1315.9,1812.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[859.0,1319.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.2299009,43.0626436]}},{"type":"Feature","properties":{"resourceCoords":[1532.0,1811.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.2287853,43.0613205]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0004/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 | 1899 | sanborn04021_003 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:35:07Z","modified":"2026-10-19T18:35:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0004","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"56.2,1593.3 123.7,1881.7 1545.0,1870.9 1512.2,1564.2 1488.1,1564.4 1473.0,867.1 1472.7,651.3 1461.3,106.5 845.1,111.7 137.6,123.5 136.1,609.2 144.2,1095.2 127.5,1095.9 142.0,1578.5 1.0,1579.6 1.0,1588.3 56.2,1593.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[812.0,595.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.22620837057353,43.062549212500386]}},{"type":"Feature","properties":{"resourceCoords":[812.0,111.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.22572083895874,43.063394287147375]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0005/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 | 1899 | sanborn04021_003 p5","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:35:07Z","modified":"2026-10-19T18:35:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0005","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"95.8,1538.4 71.7,1538.5 58.7,839.2 59.1,622.8 49.4,76.4 724.9,64.6 1108.7,68.3 1513.1,63.2 1536.1,46.6 1535.2,57.7 1627.5,630.4 1569.7,1807.3 1498.9,1860.1 1089.8,1899.5 293.4,1845.3 127.7,1846.0 95.8,1538.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[729.0,563.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.223028,43.061581]}},{"type":"Feature","properties":{"resourceCoords":[1407.0,1533.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.222377,43.059396]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0006/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 | 1899 | sanborn04021_003 p6","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.84"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:35:07Z","modified":"2026-10-19T18:35:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0006","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"51.7,114.5 62.4,51.0 276.4,18.1 1500.3,49.2 1629.9,390.9 1578.0,1676.2 1615.9,1751.9 1630.0,1752.6 1630.0,1777.4 1563.3,1777.9 1088.0,1769.0 877.1,1769.0 753.2,1769.0 125.8,1768.5 126.7,1440.8 137.2,1102.8 135.9,933.1 141.3,502.3 162.1,502.0 51.7,114.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[615.0,1769.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.230549,43.0648413]}},{"type":"Feature","properties":{"resourceCoords":[1088.0,1769.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.230086,43.065684]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0007/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 | 1899 | sanborn04021_003 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:35:07Z","modified":"2026-10-19T18:35:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0007","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1432.2,1810.7 762.5,1769.7 762.5,1762.6 92.6,1790.8 92.2,1730.0 90.8,1516.0 96.6,1033.7 95.7,966.0 70.5,966.2 106.6,110.4 362.8,190.4 513.0,105.8 1111.4,34.9 1502.9,275.1 1526.6,264.8 1630.0,219.6 1630.0,388.0 1590.0,405.2 1594.2,414.6 1376.0,515.5 1419.0,605.3 1434.7,1044.3 1429.9,1516.8 1431.9,1773.8 1432.2,1810.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[770.0,1040.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.22799109415067,43.06603089669683]}},{"type":"Feature","properties":{"resourceCoords":[106.0,1040.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.22958266734634,43.066506692335096]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0008__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 | 1899 | sanborn04021_003 p8 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"},{"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":"6524.0"},{"label":"split_canvas_h","value":"7684.0"}],"created":"2026-10-19T18:35:07Z","modified":"2026-10-19T18:35:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0008__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0008","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"860.4,1893.3 1480.1,1895.0 1487.8,1443.4 1482.8,941.2 1491.4,459.0 1490.2,174.0 1485.7,25.7 1480.3,1.0 629.0,1.0 581.5,39.1 618.4,158.9 307.0,292.9 311.2,302.2 92.0,403.5 135.2,493.6 150.6,934.5 145.5,1409.0 147.3,1667.0 148.6,1856.0 148.9,1897.3 860.4,1893.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0008__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[816.0,931.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.22481,43.065079]}},{"type":"Feature","properties":{"resourceCoords":[816.0,1416.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.225283,43.064233]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0009/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 | 1899 | sanborn04021_003 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:35:07Z","modified":"2026-10-19T18:35:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0009","type":"ImageService3","width":1631,"height":1921},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"47.4,1889.8 729.2,1884.3 1116.5,1891.8 1524.7,1890.4 1548.1,1874.0 1629.3,1009.9 1531.1,478.0 1600.7,419.0 1616.5,188.6 1566.8,46.4 1506.6,32.1 987.5,56.4 963.5,8.8 878.9,24.0 873.1,75.7 808.7,104.5 765.1,1.0 723.8,1.0 723.8,3.8 724.7,34.5 66.2,62.9 68.7,166.4 68.1,451.8 56.3,934.7 58.1,1437.6 47.4,1889.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114gm:g040211899:04021_1899-0009/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.22246552999881,43.06625816322823]}},{"type":"Feature","properties":{"resourceCoords":[1631.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.21859411799416,43.065107777446514]}},{"type":"Feature","properties":{"resourceCoords":[1631.0,1921.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.22043568811807,43.06175294028763]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1921.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.22430710012273,43.062903326069346]}}]}}]}