{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn04950_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Butte, Montana | 1888 | 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":"46"},{"label":"placed","value":"14"},{"label":"unplaced","value":"32"},{"label":"fit sources","value":"georef 9, georef-snap 4, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"9 sheet(s) cut into 37 panels"},{"label":"unplaced pages","value":"p1 (tier 1, 46.01004,-112.53104 +/-215m); p11__3 (tier 4, 46.01219,-112.53494 +/-2006m); p12__1 (tier 4, 46.01219,-112.53494 +/-2006m); p12__2 (tier 4, 46.01219,-112.53494 +/-2006m); p12__3 (tier 4, 46.01219,-112.53494 +/-2006m); p12__4 (tier 4, 46.01219,-112.53494 +/-2006m); p12__5 (tier 4, 46.01219,-112.53494 +/-2006m); p13__1 (tier 1, 46.00932,-112.54408 +/-128m); p13__2 (tier 3, 46.01042,-112.54359 +/-426m); p13__3 (tier 3, 46.01042,-112.54359 +/-426m); p13__5 (tier 1, 46.01018,-112.54388 +/-100m); p14__1 (tier 4, 46.01219,-112.53494 +/-2006m); p14__2 (tier 4, 46.01219,-112.53494 +/-2006m); p14__3 (tier 4, 46.01219,-112.53494 +/-2006m); p14__4 (tier 4, 46.01219,-112.53494 +/-2006m); p14__5 (tier 4, 46.01219,-112.53494 +/-2006m); p15__1 (tier 1, 46.01966,-112.53244 +/-100m); p15__2 (tier 1, 46.02122,-112.53506 +/-175m); p15__3 (tier 3, 46.01557,-112.53122 +/-1737m); p15__4 (tier 1, 46.02154,-112.53516 +/-225m); p15__5 (tier 1, 46.01703,-112.53590 +/-100m); p17__1 (tier 1, 46.02842,-112.53608 +/-222m); p17__2 (tier 1, 46.02614,-112.53717 +/-120m); p17__3 (tier 1, 46.02638,-112.53600 +/-112m); p18__2 (tier 1, 46.03008,-112.53445 +/-100m); p18__3 (tier 1, 46.03022,-112.53267 +/-100m); p18__4 (tier 1, 46.03011,-112.53666 +/-100m); p8__1 (tier 1, 46.01334,-112.52846 +/-100m); p9__1 (tier 1, 46.00643,-112.53719 +/-122m); p9__3 (tier 1, 46.00914,-112.53498 +/-100m); p9__4 (tier 1, 46.00880,-112.53545 +/-100m); p9__5 (tier 3, 46.00846,-112.53591 +/-426m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Butte, Montana | 1888 | sanborn04950_002 p10","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-23T00:43:26Z","modified":"2026-09-23T00:43:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1386.5 1507.1,1384.9 1503.8,1902.8 202.0,1913.0 202.6,1884.0 -0.0,1883.7 -0.0,-0.0 1613.0,0.0 1613.0,1386.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[645.0,629.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.5288767,46.0034356]}},{"type":"Feature","properties":{"resourceCoords":[1085.0,629.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.5279019,46.0038839]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0011__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Butte, Montana | 1888 | sanborn04950_002 p11 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"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":"2026-09-23T00:43:26Z","modified":"2026-09-23T00:43:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0011__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,622.2 506.7,617.6 546.1,1913.0 1020.7,1913.0 1021.4,1520.6 1613.0,1520.2 1613.0,-0.0 -0.0,0.0 -0.0,622.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0011__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[527.0,1040.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.5260419,46.001889]}},{"type":"Feature","properties":{"resourceCoords":[527.0,1891.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.5279882,46.0010238]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0011__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Butte, Montana | 1888 | sanborn04950_002 p11 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2507.2"},{"label":"split_canvas_w","value":"1926.4"},{"label":"split_canvas_h","value":"5144.8"}],"created":"2026-09-23T00:43:26Z","modified":"2026-09-23T00:43:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0011__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"13.4,691.1 -0.0,1913.0 481.6,1913.0 475.9,710.3 13.4,691.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0011__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[28.0,1684.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.5309194,45.999706]}},{"type":"Feature","properties":{"resourceCoords":[28.0,690.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.5279882,46.0010238]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0013__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Butte, Montana | 1888 | sanborn04950_002 p13 [4]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3224.8"},{"label":"split_canvas_w","value":"1720.0"},{"label":"split_canvas_h","value":"1541.2"}],"created":"2026-09-23T00:43:26Z","modified":"2026-09-23T00:43:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0013__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"430.0,806.2 111.1,807.4 114.0,869.2 -0.0,869.7 0.0,1189.4 430.0,1191.5 430.0,806.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0013__4/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,806.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.54307790659931,46.010957150297884]}},{"type":"Feature","properties":{"resourceCoords":[430.0,806.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.54304161522094,46.010161445369846]}},{"type":"Feature","properties":{"resourceCoords":[430.0,1191.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.54406653921804,46.01013885889797]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1191.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.5441028305964,46.010934563826005]}},{"type":"Feature","properties":{"resourceCoords":[114.0,869.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.543236,46.0107425]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Butte, Montana | 1888 | sanborn04950_002 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T00:43:26Z","modified":"2026-09-23T00:43:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1913.0 -0.0,1913.0 -0.0,0.0 1613.0,-0.0 1613.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0016/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.53338198789095,46.02591640629447]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.5325625960172,46.02310296283594]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.5373344073787,46.022423434169404]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.53815379925244,46.02523687762793]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0018__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Butte, Montana | 1888 | sanborn04950_002 p18 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"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":"2026-09-23T00:43:26Z","modified":"2026-09-23T00:43:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0018__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,-0.0 -0.0,0.0 0.0,1150.8 470.2,1153.0 463.2,1622.6 459.5,1913.0 1224.9,1913.0 1227.7,1329.9 1227.9,1287.9 1613.0,1282.6 1613.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0018__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[885.0,646.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.5349161,46.0302736]}},{"type":"Feature","properties":{"resourceCoords":[885.0,403.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.5343852,46.03042]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Butte, Montana | 1888 | sanborn04950_002 p2","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"14"}],"created":"2026-09-23T00:43:26Z","modified":"2026-09-23T00:43:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1628.6 1445.7,1623.3 1432.3,1781.6 91.5,1800.0 107.9,31.8 -0.0,32.7 -0.0,-0.0 1613.0,0.0 1613.0,1628.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[918.0,1339.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.5336648,46.0147183]}},{"type":"Feature","properties":{"resourceCoords":[918.0,1788.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.5335404,46.0138974]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Butte, Montana | 1888 | sanborn04950_002 p3","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"}],"created":"2026-09-23T00:43:26Z","modified":"2026-09-23T00:43:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1468.0,1759.6 90.2,1818.2 132.1,440.8 -0.0,444.1 -0.0,-0.0 1432.3,0.0 1468.0,1759.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1446.0,874.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.5359483,46.0153408]}},{"type":"Feature","properties":{"resourceCoords":[131.0,456.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.5395097,46.0159265]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Butte, Montana | 1888 | sanborn04950_002 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T00:43:26Z","modified":"2026-09-23T00:43:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1520.2,1893.8 11.5,1888.8 145.8,44.7 1516.3,11.9 1520.2,1893.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.53974534838446,46.01347537406783]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.53545904050591,46.013755455492806]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.53498410696741,46.01019999353871]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.53927041484596,46.00991991211374]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Butte, Montana | 1888 | sanborn04950_002 p5","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"24"}],"created":"2026-09-23T00:43:26Z","modified":"2026-09-23T00:43:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"76.1,1913.0 78.5,29.4 1414.5,0.0 1305.3,1100.2 1613.0,1107.2 1613.0,1913.0 76.1,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[909.0,521.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.5333923,46.0129604]}},{"type":"Feature","properties":{"resourceCoords":[74.0,927.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.5354968,46.0120676]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Butte, Montana | 1888 | sanborn04950_002 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T00:43:26Z","modified":"2026-09-23T00:43:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"104.5,1213.3 124.5,897.1 61.5,896.0 68.1,783.0 -0.0,778.7 -0.0,-0.0 1613.0,27.8 1512.4,1452.3 1613.0,1452.6 1613.0,1913.0 -0.0,1913.0 -0.0,1206.7 104.5,1213.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0006/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.54362554489138,46.0123943631149]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.53934617046563,46.01267958526708]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.53886252929867,46.00912980488945]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.54314190372442,46.00884458273727]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Butte, Montana | 1888 | sanborn04950_002 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T00:43:26Z","modified":"2026-09-23T00:43:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 1479.0,0.0 1478.4,81.8 1610.8,79.5 1531.3,1913.0 1527.8,1876.2 -0.0,1891.6 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.54377655374984,46.01585583425415]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.53952286047831,46.016101391463906]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.53910645169884,46.012573134658176]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.54336014497036,46.01232757744842]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0008__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Butte, Montana | 1888 | sanborn04950_002 p8 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"5011.6"}],"created":"2026-09-23T00:43:26Z","modified":"2026-09-23T00:43:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0008__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,0.0 1484.7,0.0 1347.2,0.0 118.6,0.0 27.3,1252.5 746.0,1242.7 745.5,1113.7 1613.0,1110.8 1613.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0008__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.53251076936452,46.01428412550717]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.52823889957118,46.0145013425084]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1252.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.52799763624976,46.012180455884405]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1252.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.53226950604311,46.01196323888317]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0009__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Butte, Montana | 1888 | sanborn04950_002 p9 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"},{"label":"split_canvas_x","value":"2034.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4417.2"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T00:43:26Z","modified":"2026-09-23T00:43:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0009__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1141.7,1913.0 1140.5,1451.7 1613.0,1450.5 1613.0,131.2 687.1,121.6 686.4,1001.2 509.0,1001.6 508.9,1296.7 508.7,1913.0 1141.7,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd425m:g4254m:g4254bm:g4254bm_g049501888:04950_1888-0009__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1509.1,1225.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.5349549,46.0081906]}},{"type":"Feature","properties":{"resourceCoords":[549.7,1225.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.5375197,46.0080065]}}]}}]}