{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn02583_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Boone, Iowa | 1900 | 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":"24"},{"label":"placed","value":"1"},{"label":"unplaced","value":"23"},{"label":"fit sources","value":"georef:misscale 1, georef 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"1 sheet(s) cut into 9 panels"},{"label":"unplaced pages","value":"p1 (tier 3, 42.06131,-93.87170 +/-563m); p10 (tier 3, 42.06227,-93.87447 +/-563m); p11 (tier 3, 42.06846,-93.87330 +/-563m); p12 (tier 3, 42.06850,-93.87659 +/-563m); p13 (tier 3, 42.06846,-93.88004 +/-563m); p14 (tier 3, 42.06839,-93.88344 +/-563m); p15__1 (tier 3, 42.06198,-93.89032 +/-1976m); p15__3 (tier 3, 42.06198,-93.89032 +/-1976m); p15__4 (tier 3, 42.06198,-93.89032 +/-1976m); p15__6 (tier 3, 42.06198,-93.89032 +/-1976m); p15__7 (tier 3, 42.06198,-93.89032 +/-1976m); p15__8 (tier 3, 42.06198,-93.89032 +/-1976m); p15__9 (tier 3, 42.06198,-93.89032 +/-1976m); p16 (tier 4, 42.06097,-93.90389 +/-132m); p2 (tier 3, 42.06533,-93.88213 +/-563m); p3 (tier 3, 42.06515,-93.89392 +/-1068m); p4 (tier 3, 42.06227,-93.87818 +/-563m); p5 (tier 3, 42.06515,-93.87810 +/-563m); p6 (tier 3, 42.05927,-93.90471 +/-563m); p7 (tier 3, 42.05730,-93.87793 +/-1068m); p8 (tier 3, 42.06180,-93.88475 +/-563m); p9 (tier 3, 42.05911,-93.87615 +/-563m)"},{"label":"withheld","value":"p15__5 (sheet 10.1 km across)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025831900:02583_1900-0015__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boone, Iowa | 1900 | sanborn02583_004 p15 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"2262.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4189.2"},{"label":"split_canvas_h","value":"5507.6"}],"created":"2026-09-22T18:47:42Z","modified":"2026-09-22T18:47:42Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025831900:02583_1900-0015__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025831900:02583_1900-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1346.3 1613.0,320.3 1364.2,316.0 1361.8,0.0 855.6,0.0 857.3,318.8 567.0,322.7 567.4,411.1 568.5,627.6 782.6,628.3 782.0,843.6 863.8,843.6 860.1,1348.9 1613.0,1346.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154bm:g025831900:02583_1900-0015__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[565.7,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.90369477546615,42.061828376069364]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.90109956736461,42.06182388734606]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1376.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.90110751159536,42.059292325807576]}},{"type":"Feature","properties":{"resourceCoords":[565.7,1376.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.9037027196969,42.05929681453088]}}]}}]}