{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn01810_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Crystal Lake, Illinois | 1893 | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"10"},{"label":"placed","value":"4"},{"label":"unplaced","value":"6"},{"label":"fit sources","value":"georef 3, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 9 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 42.24427,-88.32326 +/-271m); p1__2 (tier 4, 42.23672,-88.32986 +/-1302m); p1__3 (tier 4, 42.23672,-88.32986 +/-1302m); p3__2 (tier 4, 42.23672,-88.32986 +/-1302m); p3__3 (tier 4, 42.23672,-88.32986 +/-1302m); p3__6 (tier 4, 42.23672,-88.32986 +/-1302m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101893:01810_1893-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Crystal Lake, Illinois | 1893 | sanborn01810_001 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T11:03:33Z","modified":"2026-09-23T11:03:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101893:01810_1893-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101893:01810_1893-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913.0 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:gmd410m:g4104m:g4104cm:g018101893:01810_1893-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.31787738468833,42.2464214892464]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.3146728405487,42.24468913256591]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.31742874441282,42.241855779375534]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.32063328855246,42.243588136056026]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101893:01810_1893-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Crystal Lake, Illinois | 1893 | sanborn01810_001 p3 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4985.2"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T11:03:33Z","modified":"2026-09-23T11:03:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101893:01810_1893-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101893:01810_1893-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1548.9 399.7,1549.3 400.5,1913.0 513.0,1913.0 512.1,1686.2 821.2,1689.0 822.2,1913.0 1246.3,1913.0 1246.3,1184.1 1246.2,715.7 914.6,716.8 914.5,0.0 0.0,0.0 0.0,1548.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101893:01810_1893-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[821.2,501.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.3372693,42.234938]}},{"type":"Feature","properties":{"resourceCoords":[821.2,1689.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.3353313,42.2332625]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101893:01810_1893-0003__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Crystal Lake, Illinois | 1893 | sanborn01810_001 p3 [4]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"4984.8"},{"label":"split_canvas_y","value":"2173.6"},{"label":"split_canvas_w","value":"1467.2"},{"label":"split_canvas_h","value":"2586.4"}],"created":"2026-09-23T11:03:33Z","modified":"2026-09-23T11:03:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101893:01810_1893-0003__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101893:01810_1893-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,545.6 1246.2,543.4 1246.2,715.7 1246.3,1184.1 1613.0,1190.0 1613.0,545.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101893:01810_1893-0003__4/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1246.2,543.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.32967553591051,42.2366459984002]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,543.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.32894524825343,42.23624005936181]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1190.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.32991251792808,42.23528751844572]}},{"type":"Feature","properties":{"resourceCoords":[1246.2,1190.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.33064280558516,42.23569345748411]}},{"type":"Feature","properties":{"resourceCoords":[1558.0,963.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.3296816,42.235682]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101893:01810_1893-0003__5/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Crystal Lake, Illinois | 1893 | sanborn01810_001 p3 [5]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"4985.2"},{"label":"split_canvas_y","value":"4736.4"},{"label":"split_canvas_w","value":"1466.8"},{"label":"split_canvas_h","value":"2915.6"}],"created":"2026-09-23T11:03:33Z","modified":"2026-09-23T11:03:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101893:01810_1893-0003__5/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101893:01810_1893-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1913.0 1613.0,1485.6 1561.2,1485.4 1561.0,1257.1 1246.3,1253.0 1246.3,1843.1 1246.3,1913.0 1613.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101893:01810_1893-0003__5/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1561.0,1840.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.3343938,42.2324588]}},{"type":"Feature","properties":{"resourceCoords":[1561.0,1257.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.3353313,42.2332625]}}]}}]}