{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn02787_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Osceola, Iowa | 1886 | 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":"5"},{"label":"placed","value":"3"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 2, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p2__2 (tier 4, 41.03388,-93.76576 +/-274m); p2__4 (tier 4, 41.03388,-93.76576 +/-274m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154om:g027871886:02787_1886-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Osceola, Iowa | 1886 | sanborn02787_001 p1","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:20:02Z","modified":"2026-09-21T12:20:02Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154om:g027871886:02787_1886-0001/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154om:g027871886:02787_1886-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6360.3,-0.0 6452.0,7652.0 -0.0,7652.0 -0.0,6893.6 283.9,6898.0 315.2,5220.2 517.7,5222.3 564.1,2242.3 242.9,2229.6 292.7,-0.0 6360.3,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154om:g027871886:02787_1886-0001/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.76430225433491,41.03502912027976]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.7642739639939,41.031980370187455]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.76903377519342,41.0319548824381]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.76906206553443,41.035003632530405]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154om:g027871886:02787_1886-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Osceola, Iowa | 1886 | sanborn02787_001 p2 [1]","metadata":[{"label":"streets","value":"5"},{"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":"2026-09-21T12:20:02Z","modified":"2026-09-21T12:20:02Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154om:g027871886:02787_1886-0002__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154om:g027871886:02787_1886-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,3159.3 6140.0,3152.0 6138.6,1569.7 6150.2,1157.0 6154.6,1001.7 6452.0,997.1 6452.0,-0.0 -0.0,0.0 0.0,5154.0 2013.6,5160.0 3088.0,5163.6 4244.4,5167.6 4242.4,7652.0 6250.8,7652.0 6255.3,6034.0 6452.0,6033.0 6452.0,3159.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154om:g027871886:02787_1886-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3228.0,3152.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.765672,41.036324]}},{"type":"Feature","properties":{"resourceCoords":[6140.0,3152.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.7656881,41.0349069]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154om:g027871886:02787_1886-0002__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Osceola, Iowa | 1886 | sanborn02787_001 p2 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"2009.2"},{"label":"split_canvas_y","value":"5160.0"},{"label":"split_canvas_w","value":"1078.8"},{"label":"split_canvas_h","value":"2492.0"}],"created":"2026-09-21T12:20:02Z","modified":"2026-09-21T12:20:02Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154om:g027871886:02787_1886-0002__3/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154om:g027871886:02787_1886-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2156.1,7652.0 3086.4,7652.0 3088.0,5163.6 2013.6,5160.0 2013.5,5232.3 2156.1,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154om:g027871886:02787_1886-0002__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[2009.2,5160.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.76371221996001,41.03209155152927]}},{"type":"Feature","properties":{"resourceCoords":[3088.0,5160.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.76371152882274,41.03157099086403]}},{"type":"Feature","properties":{"resourceCoords":[3088.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.7653038769483,41.03156978791782]}},{"type":"Feature","properties":{"resourceCoords":[2009.2,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.76530456808557,41.032090348583054]}},{"type":"Feature","properties":{"resourceCoords":[2149.0,5308.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.7638067,41.032024]}}]}}]}