{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn00138_005.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Casa Grande, Arizona | 1922 | 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":"11"},{"label":"placed","value":"6"},{"label":"unplaced","value":"5"},{"label":"fit sources","value":"georef 6"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 9 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 32.88055,-111.75540 +/-224m); p1__2 (tier 1, 32.87547,-111.74834 +/-185m); p2__3 (tier 1, 32.87670,-111.75692 +/-100m); p2__4 (tier 1, 32.88015,-111.75672 +/-112m); p5__2 (tier 4, 32.87663,-111.75294 +/-544m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Casa Grande, Arizona | 1922 | sanborn00138_005 p2 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2761.6"},{"label":"split_canvas_h","value":"10240.0"}],"created":"2026-09-23T09:26:45Z","modified":"2026-09-23T09:26:45Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0002","type":"ImageService3","width":2170,"height":2560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"9.0,2560.0 681.1,2560.0 682.3,2206.3 685.1,1459.9 690.4,0.0 183.8,0.0 100.9,1304.2 66.9,1302.0 9.0,2560.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[69.0,1255.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7531,32.877921]}},{"type":"Feature","properties":{"resourceCoords":[637.4,2518.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7507475,32.8777192]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Casa Grande, Arizona | 1922 | sanborn00138_005 p2 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"2740.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"5939.6"},{"label":"split_canvas_h","value":"5858.0"}],"created":"2026-09-23T09:26:45Z","modified":"2026-09-23T09:26:45Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0002","type":"ImageService3","width":2170,"height":2560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2170.0,0.0 690.4,0.0 685.1,1459.9 878.8,1460.5 2170.0,1433.9 2170.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[733.1,731.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7534957,32.8805617]}},{"type":"Feature","properties":{"resourceCoords":[2123.0,50.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7509558,32.8816511]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0002__5/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Casa Grande, Arizona | 1922 | sanborn00138_005 p2 [5]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"2724.4"},{"label":"split_canvas_y","value":"8825.2"},{"label":"split_canvas_w","value":"2312.8"},{"label":"split_canvas_h","value":"1414.8"}],"created":"2026-09-23T09:26:45Z","modified":"2026-09-23T09:26:45Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0002__5/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0002","type":"ImageService3","width":2170,"height":2560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1258.4,2560.0 1258.6,2451.5 1259.3,2211.9 682.3,2206.3 681.1,2560.0 1258.4,2560.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0002__5/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[681.1,2206.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-111.7489427505361,32.872936170090185]}},{"type":"Feature","properties":{"resourceCoords":[1259.3,2206.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-111.74892672430538,32.873764322640696]}},{"type":"Feature","properties":{"resourceCoords":[1259.3,2560.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-111.74832171774521,32.873756093916654]}},{"type":"Feature","properties":{"resourceCoords":[681.1,2560.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-111.74833774397594,32.87292794136614]}},{"type":"Feature","properties":{"resourceCoords":[1204.3,2366.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7486713,32.8731357]}},{"type":"Feature","properties":{"resourceCoords":[1204.3,2366.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7486548,32.8736818]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Casa Grande, Arizona | 1922 | sanborn00138_005 p3","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"24"}],"created":"2026-09-23T09:26:45Z","modified":"2026-09-23T09:26:45Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0003","type":"ImageService3","width":2170,"height":2560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2170.0,0.0 2170.0,2560.0 2134.2,2511.6 -0.0,2521.2 0.0,0.0 2170.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1509.0,1302.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7553487,32.8781312]}},{"type":"Feature","properties":{"resourceCoords":[317.0,1916.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7555993,32.8762754]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Casa Grande, Arizona | 1922 | sanborn00138_005 p4","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"15"}],"created":"2026-09-23T09:26:45Z","modified":"2026-09-23T09:26:45Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0004","type":"ImageService3","width":2170,"height":2560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2142.9,55.2 2170.0,2560.0 -0.0,2560.0 -0.0,-0.0 2142.9,55.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2126.0,1314.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7512863,32.8769457]}},{"type":"Feature","properties":{"resourceCoords":[1530.0,48.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7536655,32.8771806]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Casa Grande, Arizona | 1922 | sanborn00138_005 p5 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"18"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"8680.0"},{"label":"split_canvas_h","value":"10240.0"}],"created":"2026-09-23T09:26:45Z","modified":"2026-09-23T09:26:45Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0005","type":"ImageService3","width":2170,"height":2560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,2560.0 638.5,2560.0 2017.5,2560.0 2013.9,1275.0 2088.2,1269.2 2124.2,0.0 790.1,0.0 791.5,354.5 0.0,357.2 -0.0,2560.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd433m:g4334m:g4334cm:g001381922:00138_1922-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[787.0,1695.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7556013,32.8736229]}},{"type":"Feature","properties":{"resourceCoords":[1423.0,1695.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-111.7550492,32.8743616]}}]}}]}