{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn01728_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Belvidere, Illinois | 1897 | 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":"17"},{"label":"placed","value":"10"},{"label":"unplaced","value":"7"},{"label":"fit sources","value":"georef 7, georef-snap 3"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"4 sheet(s) cut into 12 panels"},{"label":"unplaced pages","value":"p1__2 (tier 2, 42.25897,-88.84286 +/-100m); p2__2 (tier 1, 42.25818,-88.83580 +/-100m); p5__2 (tier 1, 42.25636,-88.84090 +/-100m); p6 (tier 1, 42.25881,-88.83798 +/-273m); p9__1 (tier 3, 42.25844,-88.84360 +/-1229m); p9__3 (tier 1, 42.26499,-88.84549 +/-101m); p9__4 (tier 1, 42.25732,-88.84699 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Belvidere, Illinois | 1897 | sanborn01728_003 p1 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5130.4"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"2521.6"}],"created":"2026-09-23T03:42:55Z","modified":"2026-09-23T03:42:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1913.0 1613.0,1282.6 214.4,1290.9 0.0,1293.0 0.0,1913.0 1613.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[92.0,1349.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.8530059,42.2604763]}},{"type":"Feature","properties":{"resourceCoords":[92.0,1836.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.8522668,42.2597331]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Belvidere, Illinois | 1897 | sanborn01728_003 p2 [1]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"18"},{"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":"2026-09-23T03:42:55Z","modified":"2026-09-23T03:42:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,-0.0 -0.0,0.0 -0.0,342.8 87.5,340.4 91.1,856.9 -0.0,858.1 -0.0,1354.7 93.0,1350.9 93.2,1832.9 1016.1,1805.2 1613.0,942.8 1613.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1061.0,324.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.835913,42.256652]}},{"type":"Feature","properties":{"resourceCoords":[581.0,1811.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.8396907,42.2558043]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Belvidere, Illinois | 1897 | sanborn01728_003 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T03:42:55Z","modified":"2026-09-23T03:42:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,510.6 1613.0,1913.0 -0.0,1913.0 -0.0,40.7 968.2,29.8 1613.0,510.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.84042015378775,42.25664152916197]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.8380401135807,42.254197875818114]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.84192820747,42.25209386313979]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.84430824767705,42.254537516483644]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Belvidere, Illinois | 1897 | sanborn01728_003 p4","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"14"}],"created":"2026-09-23T03:42:55Z","modified":"2026-09-23T03:42:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913.0 -0.0,941.5 71.2,890.6 73.8,97.1 1104.4,86.1 1211.3,0.0 1613.0,0.0 1613.0,1913.0 -0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[644.0,870.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.837605,42.253661]}},{"type":"Feature","properties":{"resourceCoords":[71.0,1361.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.83909,42.252737]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Belvidere, Illinois | 1897 | sanborn01728_003 p5 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"14"},{"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":"2026-09-23T03:42:55Z","modified":"2026-09-23T03:42:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"103.2,0.0 103.5,25.6 -0.0,26.7 -0.0,1728.0 114.7,1720.2 114.6,1770.9 601.0,1778.0 598.5,1684.2 1099.7,1691.7 1099.5,1783.6 1613.0,1787.8 1613.0,606.1 1175.5,524.0 1175.0,0.0 103.2,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1091.0,864.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.839774,42.25895]}},{"type":"Feature","properties":{"resourceCoords":[116.0,1801.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.8403921,42.2564866]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Belvidere, Illinois | 1897 | sanborn01728_003 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T03:42:55Z","modified":"2026-09-23T03:42:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1576.9,6.3 1591.7,1913.0 -0.0,1913.0 -0.0,-0.0 1576.9,6.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.8491402568443,42.2603042787701]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.84582373485986,42.262102678010166]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.84296206014919,42.25917104279015]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.84627858213362,42.257372643550084]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Belvidere, Illinois | 1897 | sanborn01728_003 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T03:42:55Z","modified":"2026-09-23T03:42:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"55.5,34.9 -0.0,35.5 -0.0,-0.0 977.9,0.0 976.4,55.2 1563.7,45.9 1562.1,144.3 1613.0,146.0 1613.0,1913.0 64.0,1913.0 55.5,34.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0008/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.84605378145685,42.26204394901592]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.84276743123021,42.2638414230166]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.8399071496821,42.26093653842798]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.84319349990874,42.259139064427295]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0009__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Belvidere, Illinois | 1897 | sanborn01728_003 p9 [2]","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":"2026-09-23T03:42:55Z","modified":"2026-09-23T03:42:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0009__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"531.6,1913.0 561.2,1913.0 561.2,1798.2 561.1,1333.7 561.1,761.2 1273.0,761.7 1613.0,761.9 1613.0,0.0 385.1,0.0 393.0,699.8 0.0,705.7 -0.0,1850.5 530.6,1823.8 531.6,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0009__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[523.0,1381.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.8435194,42.2644645]}},{"type":"Feature","properties":{"resourceCoords":[82.0,1849.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.843795,42.263147]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0009__5/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Belvidere, Illinois | 1897 | sanborn01728_003 p9 [5]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"2244.4"},{"label":"split_canvas_y","value":"5334.8"},{"label":"split_canvas_w","value":"1820.8"},{"label":"split_canvas_h","value":"2317.2"}],"created":"2026-09-23T03:42:55Z","modified":"2026-09-23T03:42:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0009__5/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1016.0,1913.0 1016.0,1790.0 1016.3,1401.3 1016.3,1334.5 561.1,1333.7 561.2,1798.2 561.2,1913.0 1016.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0009__5/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[561.1,1333.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.84796064569318,42.25723197625055]}},{"type":"Feature","properties":{"resourceCoords":[1016.3,1333.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.84714281090326,42.25784628934359]}},{"type":"Feature","properties":{"resourceCoords":[1016.3,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.84608411401332,42.25707517832434]}},{"type":"Feature","properties":{"resourceCoords":[561.1,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.84690194880324,42.256460865231304]}},{"type":"Feature","properties":{"resourceCoords":[852.2,1829.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.846533,42.256966]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0009__6/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Belvidere, Illinois | 1897 | sanborn01728_003 p9 [6]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"4064.0"},{"label":"split_canvas_y","value":"5602.0"},{"label":"split_canvas_w","value":"2388.0"},{"label":"split_canvas_h","value":"2050.0"}],"created":"2026-09-23T03:42:55Z","modified":"2026-09-23T03:42:55Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0009__6/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1913.0 1613.0,1400.5 1263.9,1401.0 1016.3,1401.3 1016.0,1790.0 1016.0,1913.0 1613.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017281897:01728_1897-0009__6/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1016.0,1400.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.83310673920091,42.255422586757476]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1400.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.83159128105775,42.25525683418928]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.83178352015395,42.254295233296006]}},{"type":"Feature","properties":{"resourceCoords":[1016.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.83329897829711,42.2544609858642]}},{"type":"Feature","properties":{"resourceCoords":[1082.9,1854.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.833107,42.254553]}}]}}]}