{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn04084_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Ludington, Michigan | 1916 | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"45"},{"label":"placed","value":"27"},{"label":"unplaced","value":"18"},{"label":"fit sources","value":"georef 16, georef-snap 9, georef-street 2"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"6 sheet(s) cut into 21 panels"},{"label":"unplaced pages","value":"p1 (tier 3, 43.94187,-86.45263 +/-566m); p21__1 (tier 1, 43.94963,-86.44719 +/-173m); p21__2 (tier 1, 43.94967,-86.44167 +/-142m); p21__3 (tier 1, 43.94971,-86.43995 +/-190m); p26__1 (tier 2, 43.94552,-86.43909 +/-100m); p26__2 (tier 1, 43.94795,-86.43980 +/-109m); p27__1 (tier 1, 43.94335,-86.43941 +/-211m); p27__2 (tier 1, 43.94398,-86.43926 +/-241m); p28__1 (tier 2, 43.93995,-86.43565 +/-100m); p29__2 (tier 1, 43.95500,-86.45589 +/-143m); p30__1 (tier 1, 43.96146,-86.45845 +/-140m); p30__2 (tier 1, 43.96173,-86.46010 +/-100m); p30__3 (tier 1, 43.96166,-86.45981 +/-100m); p30__4 (tier 1, 43.96157,-86.45970 +/-100m); p30__5 (tier 1, 43.96133,-86.46013 +/-100m); p30__6 (tier 1, 43.96235,-86.45926 +/-100m); p30__7 (tier 1, 43.94707,-86.42605 +/-100m); p30__8 (tier 1, 43.96082,-86.45948 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p10","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"13"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0010","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1294.6,93.5 1303.8,1794.7 267.4,1803.3 265.7,98.4 1294.6,93.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1370.0,1794.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4478214,43.9545161]}},{"type":"Feature","properties":{"resourceCoords":[270.0,648.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4506541,43.9566033]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p11","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"21"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0011","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.0,1737.3 -0.0,1730.1 -0.0,136.5 1628.0,142.6 1628.0,1737.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1096.0,656.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4450457,43.9566512]}},{"type":"Feature","properties":{"resourceCoords":[68.0,656.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4478462,43.9566221]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p12","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"0"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0012","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"730.6,0.0 1628.0,0.0 1607.5,1852.4 52.7,1856.1 40.5,222.3 730.8,222.6 730.6,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0012/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.4437283,43.9580983]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.4393987,43.95812]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.43936319999999,43.9544309]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.4436928,43.9544092]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p13","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0013","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1927.0 -0.0,281.6 488.0,124.0 1580.5,125.2 1572.0,1780.0 1021.8,1768.5 1022.2,1927.0 -0.0,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1572.0,1780.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4477678,43.9514576]}},{"type":"Feature","properties":{"resourceCoords":[488.0,124.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4506261,43.9544825]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p14","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"0"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0014","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"27.6,1770.6 23.3,151.1 1628.0,151.7 1628.0,1765.0 27.6,1770.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0014/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.4478864,43.954801]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.4436156,43.9548317]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.4435652,43.9511924]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.447836,43.9511617]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p15","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"17"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0015","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"89.0,210.0 1595.6,212.9 1577.8,1740.2 85.1,1733.9 89.0,210.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1098.0,1229.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4407681,43.9525306]}},{"type":"Feature","properties":{"resourceCoords":[86.0,1229.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4435802,43.9525078]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0016","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.0,1882.5 63.0,1888.8 78.0,0.0 1628.0,0.0 1628.0,1882.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0016/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.43961044113784,43.95604084230082]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.435457964962,43.95606025530218]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.43542626945992,43.952496918882]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.43957874563577,43.952477505880644]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p17","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0017","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"239.2,62.6 1593.3,64.7 1590.0,1157.5 1451.5,1157.1 1448.7,1913.0 -0.0,1927.0 -0.0,222.0 240.8,220.2 239.2,62.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[786.0,1158.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4477391,43.9494335]}},{"type":"Feature","properties":{"resourceCoords":[786.0,70.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4477678,43.9514576]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p18","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0018","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"139.7,51.0 1525.0,43.1 1522.3,1151.9 1628.0,1228.0 1628.0,1927.0 -0.0,1927.0 -0.0,1160.1 140.5,1159.9 139.7,51.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0018/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[970.0,602.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4435579,43.9504825]}},{"type":"Feature","properties":{"resourceCoords":[970.0,48.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.443567,43.9514983]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p19","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0019","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"239.8,83.7 1288.2,85.6 1628.0,1175.3 1628.0,1927.0 333.0,1927.0 335.8,1244.1 232.6,1169.2 239.8,83.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0019/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[778.0,630.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4407384,43.9505004]}},{"type":"Feature","properties":{"resourceCoords":[234.0,630.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4421535,43.9504896]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1649.1 -0.0,0.0 1626.8,0.0 1610.7,1792.8 1081.0,1781.8 1081.4,1661.3 -0.0,1649.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.45223691287568,43.964045226025085]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.44795262829227,43.96410530392885]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.44785452625742,43.960429353091776]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.45213881084082,43.960369275188015]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p20","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0020","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"47.6,1670.5 67.6,26.5 1628.0,0.0 1628.0,1927.0 403.6,1927.0 403.5,1670.4 47.6,1670.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0020/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.4395928101149,43.95259684219065]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.43541507602123,43.95262864749186]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.43536315068616,43.94904342899945]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.43954088477983,43.94901162369824]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p22","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0022/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0022","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1927.0 0.0,-0.0 1628.0,0.0 1628.0,1792.5 20.1,1779.6 20.8,1927.0 -0.0,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0022/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.43947727362172,43.94781539137239]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.43523487118745,43.947939460042534]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.43503233281501,43.94429845481078]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.43927473524928,43.94417438614063]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p23","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0023","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"55.1,1866.4 45.3,1927.0 48.5,0.0 1628.0,0.0 1628.0,1927.0 1069.8,1927.0 1070.7,1872.2 55.1,1866.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0023/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1142.0,786.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4322144,43.9446166]}},{"type":"Feature","properties":{"resourceCoords":[599.0,1869.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4335214,43.9425552]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p24","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0024","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"119.3,1761.8 45.9,1734.2 30.5,1639.5 -0.0,1639.5 5.2,296.3 25.9,296.1 23.9,149.2 1628.0,146.7 1628.0,1755.0 119.3,1761.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0024/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.43931200887819,43.94473571435747]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.43505614741277,43.94483063478292]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.43490120081921,43.94117788642635]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.43915706228464,43.941082966000906]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p25","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0025/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0025","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"74.5,1408.0 70.1,679.1 603.9,670.1 598.6,183.7 607.4,122.5 1628.0,111.2 1628.0,1927.0 -0.0,1927.0 -0.0,1510.0 112.8,1508.9 74.5,1408.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0025/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1154.0,116.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4335214,43.9425552]}},{"type":"Feature","properties":{"resourceCoords":[612.0,670.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4348941,43.9415044]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0028__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p28 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"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":"3778.4"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0028__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0028","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1571.6,843.8 1574.0,118.0 585.9,123.8 511.9,96.0 496.2,0.0 0.0,0.0 0.0,762.6 294.5,767.6 473.4,943.3 1608.8,944.6 1571.6,843.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0028__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.44038834713314,43.941602732366874]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.43616292633851,43.94169090626251]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,944.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.43609179848131,43.93992598601765]}},{"type":"Feature","properties":{"resourceCoords":[0.0,944.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.44031721927594,43.939837812122015]}},{"type":"Feature","properties":{"resourceCoords":[1574.0,118.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4362942,43.9414676]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0029__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p29 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2897.6"},{"label":"split_canvas_h","value":"4334.8"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0029__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0029","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"668.5,257.0 665.3,0.0 0.0,0.0 -0.0,936.0 723.5,931.7 719.2,256.4 668.5,257.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0029__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[672.4,577.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.445171,43.964917]}},{"type":"Feature","properties":{"resourceCoords":[127.1,577.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4465768,43.9649126]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0029__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p29 [3]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"1995.6"},{"label":"split_canvas_y","value":"4122.8"},{"label":"split_canvas_w","value":"4516.4"},{"label":"split_canvas_h","value":"3585.2"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0029__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0029","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1235.0,1927.0 1427.0,1927.0 1628.0,1927.0 1628.0,1030.7 724.1,1033.9 724.4,1083.7 498.9,1083.7 505.1,1927.0 1235.0,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0029__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1587.0,1590.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4438272,43.9690597]}},{"type":"Feature","properties":{"resourceCoords":[539.9,1590.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4466103,43.9688666]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0029__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p29 [4]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4334.0"},{"label":"split_canvas_w","value":"2020.4"},{"label":"split_canvas_h","value":"3374.0"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0029__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0029","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1670.2 134.4,1671.7 134.7,1927.0 505.1,1927.0 498.9,1083.7 0.0,1083.5 -0.0,1670.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0029__4/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1083.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.4455685424091,43.967085743344796]}},{"type":"Feature","properties":{"resourceCoords":[505.1,1083.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.44425744050118,43.96710048804051]}},{"type":"Feature","properties":{"resourceCoords":[505.1,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.44422319455487,43.96552372936415]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.4455342964628,43.96550898466844]}},{"type":"Feature","properties":{"resourceCoords":[134.0,1163.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4452174,43.9669402]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0003","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"24.5,1867.3 24.0,0.0 1628.0,0.0 1628.0,1870.2 24.5,1867.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.44802142862163,43.96423807532894]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.44374704553843,43.96426977670908]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.44369527971517,43.96060233588314]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.44796966279837,43.960570634503]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0004","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,0.0 1628.0,0.0 1628.0,103.9 1439.8,106.8 1450.3,783.7 1628.0,780.1 1628.0,1858.8 -0.0,1886.7 -0.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.45689922976399,43.96111394854278]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.45267832018953,43.961091631923196]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.45271475948651,43.95746987668087]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.45693566906097,43.95749219330045]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p5","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0005","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"135.0,692.3 -0.0,692.9 0.0,-0.0 1513.9,0.0 1516.8,1793.2 163.7,1796.0 180.6,692.1 135.0,692.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[414.0,691.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4520978,43.9596308]}},{"type":"Feature","properties":{"resourceCoords":[414.0,1798.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4520748,43.9575981]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p6","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0006","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1458.9,1785.5 165.7,1790.6 163.9,127.2 1460.0,130.4 1458.9,1785.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1260.0,132.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4464977,43.960694]}},{"type":"Feature","properties":{"resourceCoords":[1260.0,1786.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4464626,43.9576494]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p7","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0007","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1795.2 -0.0,143.8 893.7,144.9 894.0,0.0 1628.0,0.0 1628.0,1791.8 -0.0,1795.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[896.0,691.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4436787,43.9597028]}},{"type":"Feature","properties":{"resourceCoords":[896.0,1791.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.4436571,43.957673]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0008","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 839.9,0.0 838.8,45.7 1628.0,53.4 1607.2,1905.8 1628.0,1927.0 -0.0,1927.0 0.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0008/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.45907691162668,43.95762471148479]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.45492336646609,43.95767870644631]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.45483520682016,43.95411454831852]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.45898875198075,43.954060553357]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ludington, Michigan | 1916 | sanborn04084_006 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T21:11:54Z","modified":"2026-09-22T21:11:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0009","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.0,1770.8 1367.0,1856.7 1367.0,1890.3 1628.0,1890.6 1628.0,1927.0 -0.0,1927.0 19.1,1772.5 -0.0,119.1 1628.0,119.4 1628.0,1770.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040841916:04084_1916-0009/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.45494051249162,43.95780810087281]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.45068093938704,43.95783944291564]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.45062976593897,43.9541843087447]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.45488933904355,43.95415296670187]}}]}}]}