{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn01900_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Grays Lake, Illinois | 1934 | mapsnap generated fit (2026-09-21)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-21"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"8"},{"label":"placed","value":"5"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 3, georef-snap 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 6 panels"},{"label":"unplaced pages","value":"p1__2 (tier 1, 42.33868,-88.03757 +/-283m); p3__1 (tier 1, 42.34464,-88.03626 +/-126m); p3__2 (tier 1, 42.34033,-88.04005 +/-262m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104gm:g019001934:01900_1934-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Grays Lake, Illinois | 1934 | sanborn01900_002 p1 [1]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"23"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3219.2"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-21T20:04:23Z","modified":"2026-09-21T20:04:23Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104gm:g019001934:01900_1934-0001__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104gm:g019001934:01900_1934-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1443.5,7370.4 1973.0,3538.0 3174.5,3732.8 3132.0,0.0 -0.0,-0.0 -0.0,6582.9 278.6,6622.1 200.0,7188.0 1443.5,7370.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104gm:g019001934:01900_1934-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[200.0,7188.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.04371,42.342425]}},{"type":"Feature","properties":{"resourceCoords":[2259.4,1640.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.042198,42.347497]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104gm:g019001934:01900_1934-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Grays Lake, Illinois | 1934 | sanborn01900_002 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T20:04:23Z","modified":"2026-09-21T20:04:23Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104gm:g019001934:01900_1934-0002/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104gm:g019001934:01900_1934-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5940.7,3572.0 6001.2,7339.1 665.0,7419.9 493.2,0.0 6007.0,0.0 6452.0,718.4 6452.0,3100.9 5735.3,3157.5 5940.7,3572.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104gm:g019001934:01900_1934-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.04252663800412,42.34581627400307]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.03856335721994,42.34575100729977]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.03866735097026,42.3422523574242]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.04263063175443,42.3423176241275]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104gm:g019001934:01900_1934-0003__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Grays Lake, Illinois | 1934 | sanborn01900_002 p3 [3]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"12"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"1407.2"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"6244.8"}],"created":"2026-09-21T20:04:23Z","modified":"2026-09-21T20:04:23Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104gm:g019001934:01900_1934-0003__3/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104gm:g019001934:01900_1934-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1272.0,5107.6 1217.1,6974.7 2198.8,7004.2 2183.9,7652.0 3052.4,7652.0 3165.2,5466.8 6452.0,4912.0 6452.0,4292.8 2716.8,1890.4 2015.6,1414.0 0.0,1407.2 -0.0,3276.7 1378.5,3339.6 1587.3,3719.8 1534.4,4885.8 1180.2,4897.7 1272.0,5107.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104gm:g019001934:01900_1934-0003__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2772.0,4921.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.0370624,42.3443267]}},{"type":"Feature","properties":{"resourceCoords":[5868.0,4385.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.0332204,42.344888]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104gm:g019001934:01900_1934-0003__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Grays Lake, Illinois | 1934 | sanborn01900_002 p3 [4]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"3052.4"},{"label":"split_canvas_y","value":"4912.0"},{"label":"split_canvas_w","value":"3399.6"},{"label":"split_canvas_h","value":"2740.0"}],"created":"2026-09-21T20:04:23Z","modified":"2026-09-21T20:04:23Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104gm:g019001934:01900_1934-0003__4/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104gm:g019001934:01900_1934-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,4912.0 3165.2,5466.8 3052.4,7652.0 6452.0,7652.0 6452.0,4912.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104gm:g019001934:01900_1934-0003__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5208.1,5255.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.046993,42.346503]}},{"type":"Feature","properties":{"resourceCoords":[3456.4,5567.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.049157,42.346499]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104gm:g019001934:01900_1934-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Grays Lake, Illinois | 1934 | sanborn01900_002 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T20:04:23Z","modified":"2026-09-21T20:04:23Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104gm:g019001934:01900_1934-0004/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104gm:g019001934:01900_1934-0004/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 -0.0,7652.0 -0.0,-0.0 703.5,0.0 704.3,545.3 5557.9,572.1 5559.2,1222.3 6452.0,1200.3 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104gm:g019001934:01900_1934-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.04457878132925,42.34292719376106]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.03661088131683,42.34291870788327]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.0366244014383,42.33588440182493]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.04459230145072,42.33589288770271]}}]}}]}