{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn02728_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Mcgregor, Iowa | 1902 | 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":"9"},{"label":"placed","value":"3"},{"label":"unplaced","value":"6"},{"label":"fit sources","value":"georef 3, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 42.95907,-91.36419 +/-256m); p4__2 (tier 4, 42.97102,-91.16021 +/-20184m); p4__3 (tier 4, 42.97102,-91.16021 +/-20184m); p5__1 (tier 1, 43.03973,-91.18105 +/-240m); p5__2 (tier 1, 43.04452,-91.17727 +/-188m)"},{"label":"withheld","value":"p1__2 (26.0 km from the catalogue location)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027281902:02728_1902-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Mcgregor, Iowa | 1902 | sanborn02728_003 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T00:36:03Z","modified":"2026-09-23T00:36:03Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027281902:02728_1902-0002/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027281902:02728_1902-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6022.9,7340.7 1213.0,7480.0 1181.4,7652.0 -0.0,7652.0 -0.0,0.0 6452.0,-0.0 6452.0,7652.0 6020.1,7652.0 6022.9,7340.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027281902:02728_1902-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.17784726586807,43.026215313428004]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.17476161720558,43.024230752666085]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.17795854162475,43.02153649137404]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.18104419028724,43.02352105213596]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027281902:02728_1902-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Mcgregor, Iowa | 1902 | sanborn02728_003 p3","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-23T00:36:03Z","modified":"2026-09-23T00:36:03Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027281902:02728_1902-0003/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027281902:02728_1902-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,334.0 919.7,341.2 952.1,168.9 5776.0,67.3 5775.1,379.6 6205.1,383.0 6206.6,-0.0 6452.0,-0.0 6452.0,7652.0 -0.0,7652.0 -0.0,334.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027281902:02728_1902-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3376.0,6816.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.1819831,43.0201309]}},{"type":"Feature","properties":{"resourceCoords":[3376.0,216.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.1792478,43.0224552]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027281902:02728_1902-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Mcgregor, Iowa | 1902 | sanborn02728_003 p4 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"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":"2026-09-23T00:36:03Z","modified":"2026-09-23T00:36:03Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027281902:02728_1902-0004__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027281902:02728_1902-0004/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,-0.0 -0.0,0.0 -0.0,7652.0 3239.6,7652.0 3228.0,5930.8 3854.8,5925.2 3838.8,3296.0 4460.0,2558.0 6452.0,2545.6 6452.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027281902:02728_1902-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1580.0,4952.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.1803148,43.0450342]}},{"type":"Feature","properties":{"resourceCoords":[1580.0,1576.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.1781829,43.045054]}}]}}]}