{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn02729_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Madrid, Iowa | 1916 | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"6"},{"label":"placed","value":"3"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 3"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p1__2 (tier 1, 41.87138,-93.81658 +/-161m); p1__3 (tier 1, 41.87870,-93.81871 +/-104m); p3__2 (tier 1, 41.87461,-93.81901 +/-100m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027291916:02729_1916-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Madrid, Iowa | 1916 | sanborn02729_001 p1 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3275.2"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T09:34:51Z","modified":"2026-09-22T09:34:51Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027291916:02729_1916-0001__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027291916:02729_1916-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 3098.6,7652.0 3275.2,0.0 0.0,0.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027291916:02729_1916-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3167.2,5380.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.822983,41.875871]}},{"type":"Feature","properties":{"resourceCoords":[1231.7,1336.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.824279,41.877712]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027291916:02729_1916-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Madrid, Iowa | 1916 | sanborn02729_001 p2","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"18"}],"created":"2026-09-22T09:34:51Z","modified":"2026-09-22T09:34:51Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027291916:02729_1916-0002/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027291916:02729_1916-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6369.6,5538.7 6158.9,5544.8 6145.3,7337.1 6452.0,7339.4 6452.0,7652.0 -0.0,7652.0 -0.0,5808.7 193.3,5803.7 218.8,0.0 6396.1,0.0 6369.6,5538.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027291916:02729_1916-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2252.0,3512.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.821711,41.875883]}},{"type":"Feature","properties":{"resourceCoords":[4356.0,1436.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.820417,41.876849]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027291916:02729_1916-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Madrid, Iowa | 1916 | sanborn02729_001 p3 [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":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T09:34:51Z","modified":"2026-09-22T09:34:51Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027291916:02729_1916-0003__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027291916:02729_1916-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,0.0 -0.0,0.0 -0.0,265.9 196.3,264.4 212.0,5840.0 -0.0,5847.8 -0.0,7652.0 3776.0,7652.0 3773.6,5759.6 4838.4,5771.6 4838.4,7652.0 6452.0,7652.0 6452.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027291916:02729_1916-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[212.0,3768.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.819146,41.875915]}},{"type":"Feature","properties":{"resourceCoords":[212.0,5840.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.819144,41.874966]}}]}}]}