{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn02415_007.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Michigan City, Indiana | 1929 | 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":"70"},{"label":"placed","value":"40"},{"label":"unplaced","value":"30"},{"label":"fit sources","value":"georef 27, georef-snap 12, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"19 sheet(s) cut into 48 panels"},{"label":"unplaced pages","value":"p1 (tier 1, 41.71923,-86.90156 +/-270m); p11 (tier 3, 41.72161,-86.89490 +/-572m); p13__2 (tier 1, 41.71763,-86.89684 +/-104m); p14__1 (tier 3, 41.71838,-86.89217 +/-572m); p14__2 (tier 3, 41.71838,-86.89217 +/-572m); p14__3 (tier 1, 41.71844,-86.89565 +/-131m); p21__2 (tier 1, 41.70666,-86.91307 +/-100m); p22__2 (tier 1, 41.70971,-86.90792 +/-110m); p25 (tier 3, 41.70374,-86.91742 +/-572m); p26__1 (tier 1, 41.70719,-86.91064 +/-100m); p26__2 (tier 2, 41.70978,-86.89912 +/-1039m); p27__2 (tier 2, 41.70679,-86.90745 +/-124m); p2__2 (tier 1, 41.72052,-86.90326 +/-100m); p31__2 (tier 1, 41.71013,-86.89247 +/-100m); p36__2 (tier 1, 41.71333,-86.88938 +/-131m); p36__3 (tier 1, 41.71144,-86.88843 +/-100m); p36__5 (tier 1, 41.71161,-86.89008 +/-100m); p37 (tier 3, 41.70751,-86.89910 +/-2128m); p38__2 (tier 3, 41.72311,-86.88457 +/-572m); p38__3 (tier 1, 41.72320,-86.88497 +/-190m); p38__4 (tier 1, 41.72281,-86.88652 +/-147m); p39__3 (tier 1, 41.73113,-86.88630 +/-176m); p3__1 (tier 1, 41.72423,-86.90243 +/-256m); p3__2 (tier 1, 41.72583,-86.89240 +/-100m); p40__1 (tier 4, 41.71310,-86.89788 +/-2368m); p40__2 (tier 4, 41.71310,-86.89788 +/-2368m); p41__2 (tier 1, 41.71319,-86.87007 +/-100m); p4__2 (tier 1, 41.70765,-86.91156 +/-202m); p6__2 (tier 1, 41.71104,-86.89890 +/-100m); p9__2 (tier 1, 41.71920,-86.90018 +/-105m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"666.5,1913.0 92.3,668.7 108.2,254.6 23.6,590.8 -0.0,587.5 -0.0,-0.0 1613.0,0.0 1613.0,1913.0 666.5,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0010/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.90093968196858,41.72125151084777]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.89745379867257,41.722673997598406]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.89520938437018,41.719566439542504]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.89869526766618,41.71814395279187]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p12","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1913.0 -0.0,1913.0 -0.0,0.0 1613.0,-0.0 1613.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1040.0,70.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8889973,41.7206785]}},{"type":"Feature","properties":{"resourceCoords":[326.0,70.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.889033,41.722059]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0013__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p13 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0013__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"49.8,537.6 39.3,1797.8 1113.4,1806.4 1178.4,1913.0 1613.0,1913.0 1613.0,898.9 1358.3,879.4 1188.3,334.4 285.4,450.0 271.8,429.8 244.6,384.5 242.1,532.5 49.8,537.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0013__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[688.0,1167.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8956422,41.7177646]}},{"type":"Feature","properties":{"resourceCoords":[46.0,1167.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8971254,41.7173206]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"76.4,1913.0 74.5,1706.8 36.0,1707.7 32.6,25.6 1115.8,0.0 1185.3,104.8 1613.0,91.3 1613.0,948.1 1518.6,921.2 1190.0,1859.8 1339.0,1913.0 76.4,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0015/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.8966536002196,41.71625230427438]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.89291465647072,41.71726976317797]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.89130943323708,41.71393633136187]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.89504837698595,41.71291887245828]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"378.0,1913.0 -0.0,1913.0 -0.0,0.0 952.6,-0.0 1503.8,261.1 1548.7,178.3 1613.0,202.7 1588.9,1880.7 588.8,1913.0 579.8,1817.6 378.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0016/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.88763183967035,41.71660285437872]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.88772902175654,41.71363267046184]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.89241502408547,41.7137193124212]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.89231784199927,41.71668949633808]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p17","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"718.0,1819.2 40.1,1784.5 36.8,1177.8 -0.0,1100.6 -0.0,-0.0 1613.0,0.0 1613.0,1750.5 1407.8,1776.5 1418.3,1829.7 699.0,1875.9 718.0,1819.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1405.0,745.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8841819,41.7144173]}},{"type":"Feature","properties":{"resourceCoords":[37.0,1260.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.887781,41.714713]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0018__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p18 [1]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"11"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0018__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1144.0,1913.0 1106.5,1762.3 1613.0,1615.9 1613.0,0.0 437.1,0.0 689.6,479.0 0.0,1197.8 -0.0,1913.0 1144.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0018__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1386.0,890.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9131312,41.7130991]}},{"type":"Feature","properties":{"resourceCoords":[915.0,1197.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9143752,41.7126177]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0018__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p18 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2758.4"},{"label":"split_canvas_h","value":"4791.2"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0018__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,-0.0 -0.0,1197.8 689.6,479.0 437.1,0.0 0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0018__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":[-86.91559480902677,41.70928299685403]}},{"type":"Feature","properties":{"resourceCoords":[689.6,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.91424497737779,41.708481287621716]}},{"type":"Feature","properties":{"resourceCoords":[689.6,1197.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.91609643951803,41.706719323298714]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1197.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.91744627116701,41.70752103253103]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p19","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0019","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1038.2,1913.0 487.2,1635.8 348.2,1913.0 -0.0,1913.0 -0.0,11.4 1578.4,-0.0 1562.7,1348.6 1608.8,1372.5 1283.8,1299.8 1243.5,1479.9 1240.8,1913.0 1038.2,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0019/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.90580196609683,41.718489690999704]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.90300796241324,41.7130116135086]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.91165052903702,41.71052061415488]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.91444453272061,41.715998691645986]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p20","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0020","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"210.9,1913.0 192.3,1380.2 -0.0,1332.0 -0.0,1233.4 180.6,1193.0 -0.0,369.5 -0.0,0.0 653.7,-0.0 1322.5,177.6 1613.0,115.7 1613.0,184.2 1288.9,214.3 1613.0,1750.6 1383.1,1689.9 1403.1,1913.0 210.9,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0020/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.90945044147402,41.71243715704472]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.90887217733433,41.70947980718314]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.91353760426708,41.70896422395698]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.91411586840677,41.71192157381856]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0021__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p21 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0021__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,805.2 1271.4,424.7 1138.3,376.1 1145.0,283.9 1133.2,270.8 1150.6,205.6 1157.4,111.2 998.6,129.8 878.5,-0.0 38.4,-0.0 240.2,1561.5 -0.0,1474.2 -0.0,1913.0 1613.0,1913.0 1613.0,805.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0021__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1406.0,1094.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9113463,41.7070875]}},{"type":"Feature","properties":{"resourceCoords":[33.0,-49.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9093961,41.7100482]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0022__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p22 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0022__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0022","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1490.0 -0.0,1913.0 360.1,1913.0 355.8,1841.3 1588.2,1812.3 1582.3,778.7 356.1,782.7 -0.0,1490.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0022__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[762.0,1406.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9077029,41.7106012]}},{"type":"Feature","properties":{"resourceCoords":[669.0,157.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9089967,41.7127179]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p23","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0023","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1528.2,18.0 1535.9,1765.9 197.9,1779.0 198.9,869.7 172.8,870.1 155.5,36.4 1528.2,18.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0023/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.90672463016118,41.71218878691816]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.90293042620448,41.71320097404306]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.9013336216243,41.70981806035758]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.905127825581,41.70880587323268]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p24","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0024","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"300.3,1274.1 212.5,1279.4 194.2,25.6 -0.0,26.7 -0.0,0.0 1449.3,23.1 1451.1,1278.4 1195.0,1278.5 951.2,1913.0 762.5,1913.0 300.3,1274.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0024/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.90553069251456,41.71077560495528]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.90415736814265,41.70799678503138]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.9085410257581,41.70677228694598]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.90991435013001,41.709551106869874]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0027__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p27 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0027__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0027","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913.0 479.8,1913.0 1613.0,1913.0 1613.0,1453.7 1601.4,1457.8 1449.6,1019.4 1020.6,1006.2 829.5,1066.0 819.6,726.4 613.1,83.0 214.2,55.7 -0.0,339.4 -0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0027__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[613.0,83.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9074428,41.7078985]}},{"type":"Feature","properties":{"resourceCoords":[820.0,1731.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.905982,41.7015288]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0028/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p28","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0028/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0028","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1448.1,12.2 1479.2,1501.0 1367.8,1913.0 948.9,1913.0 497.4,1746.8 443.6,1913.0 -0.0,1913.0 194.9,1213.2 180.7,26.1 1448.1,12.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0028/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.9076574104988,41.70739053075993]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.90398414915751,41.70838677231559]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.90241261666522,41.705111447904905]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.90608587800651,41.70411520634924]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0029/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p29","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0029/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0029","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"96.0,1775.0 95.0,0.0 1465.0,0.0 1490.0,1704.5 96.0,1775.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0029/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[515.0,1357.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9026755,41.707091]}},{"type":"Feature","properties":{"resourceCoords":[96.0,1775.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9032865,41.7061056]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p2 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"424.5,1464.8 301.4,1913.0 1613.0,1913.0 1613.0,0.0 0.0,-0.0 0.0,372.1 591.7,685.9 593.4,950.2 595.9,1346.9 41.1,1348.2 424.5,1464.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[270.0,1854.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.904982,41.7201797]}},{"type":"Feature","properties":{"resourceCoords":[904.0,1844.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.903773,41.7209169]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0002__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p2 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3800.8"},{"label":"split_canvas_w","value":"2383.6"},{"label":"split_canvas_h","value":"1592.4"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0002__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"567.4,1294.3 595.8,1322.9 593.4,950.2 0.0,1027.2 0.0,1348.3 88.1,1311.7 567.4,1294.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0002__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[31.0,1294.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9064737,41.7197427]}},{"type":"Feature","properties":{"resourceCoords":[567.9,1294.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.904982,41.7201797]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0030/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p30","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"17"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0030/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0030","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"193.0,1801.4 151.2,140.7 1451.0,117.8 1474.8,1786.5 193.0,1801.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0030/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[822.0,546.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8996576,41.7095783]}},{"type":"Feature","properties":{"resourceCoords":[1463.0,960.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8978218,41.7092571]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0031__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p31 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0031__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0031","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"254.0,1913.0 546.0,1913.0 1014.8,1913.0 1005.8,1597.5 1141.6,1253.0 1613.0,1318.8 1613.0,1234.0 1613.0,1048.0 1613.0,0.0 29.3,0.0 48.4,1913.0 254.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0031__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[651.0,692.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8967577,41.7103819]}},{"type":"Feature","properties":{"resourceCoords":[45.0,1529.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8974623,41.7085386]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0032/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p32","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0032/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0032","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,645.4 72.4,647.9 187.2,321.2 182.9,28.1 1569.3,0.0 1554.2,1913.0 -0.0,1913.0 -0.0,645.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0032/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.90373209881118,41.70602772360975]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.90003108780732,41.707141624043885]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.89827398705043,41.70384149221338]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.90197499805429,41.702727591779244]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0033/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p33","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0033/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0033","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4.3,22.4 1613.0,21.1 1613.0,1913.0 1539.8,1913.0 1531.1,1699.6 639.2,1728.8 639.9,1913.0 -0.0,1913.0 4.3,22.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0033/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.90010674354761,41.70704291264068]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.89640437992844,41.70810924587826]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.89472228814063,41.704807956984375]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.8984246517598,41.703741623746794]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0034/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p34","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0034/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0034","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913.0 -0.0,455.9 -0.0,-0.0 1613.0,0.0 1613.0,1913.0 -0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0034/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[404.0,870.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8936291,41.7068005]}},{"type":"Feature","properties":{"resourceCoords":[1567.0,50.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8907622,41.7083068]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0035__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p35 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3490.0"},{"label":"split_canvas_h","value":"4396.0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0035__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0035","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"14.0,59.0 0.1,1094.9 869.9,1099.0 872.4,61.4 14.0,59.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0035__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[601.6,754.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8950391,41.7037035]}},{"type":"Feature","properties":{"resourceCoords":[14.0,59.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8971193,41.7044821]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0035__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p35 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"3479.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2972.4"},{"label":"split_canvas_h","value":"4409.6"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0035__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0035","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,0.0 872.5,0.0 869.9,1099.0 1613.0,1102.4 1613.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0035__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[869.9,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.89038340181742,41.70121217565814]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.88853462616044,41.701208283777625]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1102.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.88854233731362,41.69916117132253]}},{"type":"Feature","properties":{"resourceCoords":[869.9,1102.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.8903911129706,41.69916506320305]}},{"type":"Feature","properties":{"resourceCoords":[1352.3,1002.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8891902,41.6993483]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0035__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p35 [3]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4379.6"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3272.4"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0035__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0035","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1102.4 869.9,1099.0 0.0,1094.9 -0.0,1913.0 1613.0,1913.0 1613.0,1102.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0035__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[507.0,1560.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8942156,41.7009752]}},{"type":"Feature","properties":{"resourceCoords":[507.0,1136.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8942138,41.7017372]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0036__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p36 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2034.8"},{"label":"split_canvas_h","value":"5166.8"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0036__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0036","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 0.0,1284.9 508.7,1291.7 507.5,928.2 506.4,611.4 504.5,0.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0036__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[455.7,1033.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8808524,41.7115556]}},{"type":"Feature","properties":{"resourceCoords":[34.0,30.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8819094,41.7133869]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0036__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p36 [4]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"4220.8"},{"label":"split_canvas_y","value":"2441.6"},{"label":"split_canvas_w","value":"2231.2"},{"label":"split_canvas_h","value":"3372.4"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0036__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0036","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,610.4 1055.2,610.9 1056.8,915.9 1058.7,920.6 1274.4,1453.5 1613.0,1450.4 1613.0,610.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0036__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1418.1,655.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.878724,41.7109177]}},{"type":"Feature","properties":{"resourceCoords":[1003.2,655.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8796526,41.7112071]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0036__6/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p36 [6]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5139.6"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"2512.4"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0036__6/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0036","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913.0 1613.0,1913.0 1613.0,1450.4 1281.4,1453.4 1280.8,1460.2 1101.6,1467.6 1106.8,1514.2 482.2,1501.2 502.8,1453.6 -0.0,1385.2 -0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0036__6/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[142.0,1736.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8881622,41.71295]}},{"type":"Feature","properties":{"resourceCoords":[1449.0,1482.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8844275,41.7124061]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0038__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p38 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3017.2"},{"label":"split_canvas_h","value":"4356.4"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0038__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0038","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,580.8 242.0,713.8 368.6,990.1 509.0,987.4 509.6,1018.7 510.0,1089.1 510.8,1088.5 653.3,984.5 754.3,910.8 743.9,420.1 736.1,0.0 0.0,0.0 0.0,580.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0038__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[42.0,64.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8924739,41.7256267]}},{"type":"Feature","properties":{"resourceCoords":[494.2,64.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8924577,41.7247968]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0039__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p39 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"2944.0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0039__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0039","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1480.1,399.7 1613.0,399.3 1613.0,0.0 -0.0,-0.0 0.0,735.9 -0.0,736.0 1613.0,732.2 1613.0,718.4 1492.5,723.0 1480.1,399.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0039__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[630.0,400.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8918303,41.7290966]}},{"type":"Feature","properties":{"resourceCoords":[1330.0,400.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8888419,41.7302982]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0039__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p39 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2928.8"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"2339.2"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0039__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0039","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,732.2 141.6,735.7 131.3,1002.0 0.0,997.3 0.0,1317.0 1613.0,1316.1 1613.0,732.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0039__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1145.0,998.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8833617,41.7326824]}},{"type":"Feature","properties":{"resourceCoords":[39.0,998.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8880349,41.7306267]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0041__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p41 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2458.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"5194.0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0041__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0041","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,617.3 0.0,614.5 -0.0,1913.0 140.7,1913.0 1613.0,1913.0 1613.0,617.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0041__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[314.0,1838.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8718257,41.7131436]}},{"type":"Feature","properties":{"resourceCoords":[1108.0,643.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8698304,41.7155658]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p4 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"14"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"5219.2"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"17.2,1858.7 1304.8,1895.8 1304.4,0.0 1182.0,0.0 1018.5,0.0 701.7,93.2 655.8,48.5 141.4,45.2 37.9,105.0 -0.0,1266.2 28.3,1266.7 17.2,1858.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[627.9,1278.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9038542,41.7179446]}},{"type":"Feature","properties":{"resourceCoords":[40.0,43.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9064737,41.7197427]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1420.0,662.0 1416.3,1272.1 1613.0,1273.1 1613.0,1886.1 31.9,1870.6 28.9,43.2 1320.3,59.2 1319.1,0.0 1491.5,0.0 1491.7,63.5 1613.0,65.2 1613.0,662.0 1420.0,662.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0005/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.90487357489586,41.71651384287943]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.9009656465261,41.717634153429415]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.89919814939938,41.71415007831707]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.90310607776914,41.71302976776708]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p6 [1]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"10"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"12.7,53.4 -0.0,1884.8 1259.3,1881.1 1257.2,1607.5 1466.7,1609.5 1472.1,230.2 1188.6,219.1 1188.6,56.0 12.7,53.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[636.0,1075.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9007372,41.7117241]}},{"type":"Feature","properties":{"resourceCoords":[636.0,57.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9016377,41.7135211]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1767.3 -0.0,185.6 1587.8,170.6 1574.4,1218.1 1613.0,1217.6 1613.0,1913.0 1381.0,1913.0 1381.7,1781.0 -0.0,1767.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.89981883620662,41.71439657426627]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.8960948347138,41.715438493298514]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.8944510677208,41.71211828930721]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.89817506921362,41.71107637027497]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p8","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"193.2,1257.3 -0.0,1258.4 -0.0,656.1 189.4,654.1 185.8,64.9 1480.5,63.1 1501.4,1846.0 196.8,1862.5 193.2,1257.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[981.0,1253.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8978416,41.715865]}},{"type":"Feature","properties":{"resourceCoords":[981.0,62.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.8989383,41.7180674]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0009__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Michigan City, Indiana | 1929 | sanborn02415_007 p9 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T09:29:11Z","modified":"2026-09-22T09:29:11Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0009__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"850.0,621.4 790.9,70.2 -0.0,-0.0 -0.0,1863.3 1613.0,1866.1 1613.0,1725.1 1001.8,753.6 954.1,753.6 951.4,601.5 923.1,295.2 885.5,621.5 850.0,621.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094mm:g4094mm_g024151929:02415_1929-0009__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[348.0,648.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.901483,41.7198908]}},{"type":"Feature","properties":{"resourceCoords":[348.0,1258.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9009149,41.7187792]}}]}}]}