{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01722_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Avon, Illinois | 1898 | mapsnap generated fit (2026-10-18)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-18"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"8"},{"label":"placed","value":"5"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 5"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 8 panels"},{"label":"unplaced pages","value":"p2__1 (tier 2, 40.66136,-90.43501 +/-182m); p2__5 (tier 2, 40.66136,-90.43501 +/-182m); p2__6 (tier 2, 40.66136,-90.43501 +/-182m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017221898:01722_1898-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Avon, Illinois | 1898 | sanborn01722_002 p1 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"22"},{"label":"confidence","value":"0.55"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"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":"2026-10-18T06:43:25Z","modified":"2026-10-18T06:43:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017221898:01722_1898-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017221898:01722_1898-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1534.2,954.3 1535.0,291.0 1612.0,290.3 1612.0,269.1 1552.5,267.1 1491.3,50.8 871.2,40.0 874.2,22.1 451.3,53.2 445.4,27.8 169.3,67.0 119.2,286.5 237.5,286.5 508.0,286.5 457.1,817.9 360.1,818.8 215.1,820.1 86.2,821.3 86.4,893.2 1.0,1335.9 1.0,1605.6 22.5,1599.3 46.7,1868.0 99.1,1890.1 1533.2,1873.2 1564.5,954.3 1534.2,954.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017221898:01722_1898-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1535.0,865.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.433557,40.66202]}},{"type":"Feature","properties":{"resourceCoords":[1535.0,291.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.433548,40.6630566]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017221898:01722_1898-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Avon, Illinois | 1898 | sanborn01722_002 p1 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.56"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"1146.0"},{"label":"split_canvas_w","value":"2032.0"},{"label":"split_canvas_h","value":"2142.4"}],"created":"2026-10-18T06:43:25Z","modified":"2026-10-18T06:43:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017221898:01722_1898-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017221898:01722_1898-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"407.1,761.4 479.9,326.6 463.6,357.6 428.0,348.3 407.9,305.7 27.0,330.0 5.2,287.2 1.0,471.4 1.0,791.5 407.1,761.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017221898:01722_1898-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,286.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.43611507820611,40.66444995871824]}},{"type":"Feature","properties":{"resourceCoords":[508.0,286.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.434858560588,40.66444286395977]}},{"type":"Feature","properties":{"resourceCoords":[508.0,822.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.43486840136336,40.663434356688974]}},{"type":"Feature","properties":{"resourceCoords":[0.0,822.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.43612491898148,40.66344145144744]}},{"type":"Feature","properties":{"resourceCoords":[459.0,408.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.434982,40.664214]}},{"type":"Feature","properties":{"resourceCoords":[459.0,408.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.434982,40.664214]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017221898:01722_1898-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Avon, Illinois | 1898 | sanborn01722_002 p2 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.78"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1722.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4730.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-18T06:43:25Z","modified":"2026-10-18T06:43:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017221898:01722_1898-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017221898:01722_1898-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1527.7,1193.6 1528.0,1071.9 1612.0,643.8 1612.0,88.4 1271.6,49.5 1128.1,100.3 1049.8,294.6 1044.8,575.3 1044.6,602.9 1044.3,602.9 1044.3,602.9 505.1,655.7 465.9,923.7 465.4,962.8 500.1,1259.3 822.8,1413.7 823.0,1413.7 822.4,1490.6 925.8,1825.5 1212.7,1716.7 1294.2,1407.4 1294.3,1393.0 1294.7,1393.0 1298.0,1393.0 1527.2,1326.6 1527.6,1217.5 1527.7,1193.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017221898:01722_1898-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1476.0,1352.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.43735,40.660653]}},{"type":"Feature","properties":{"resourceCoords":[1015.2,1246.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.43849,40.660855]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017221898:01722_1898-0002__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Avon, Illinois | 1898 | sanborn01722_002 p2 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.58"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2345.6"},{"label":"split_canvas_w","value":"1722.0"},{"label":"split_canvas_h","value":"2714.4"}],"created":"2026-10-18T06:43:25Z","modified":"2026-10-18T06:43:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017221898:01722_1898-0002__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017221898:01722_1898-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"400.1,699.1 25.2,608.2 14.5,1224.5 374.2,1200.8 400.1,699.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017221898:01722_1898-0002__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,586.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.43267886596223,40.66079372103362]}},{"type":"Feature","properties":{"resourceCoords":[430.5,586.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.43161526764244,40.66078891982855]}},{"type":"Feature","properties":{"resourceCoords":[430.5,1265.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.43162523413166,40.65951133915016]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1265.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.43268883245145,40.65951614035523]}},{"type":"Feature","properties":{"resourceCoords":[80.1,655.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.432482,40.660663]}},{"type":"Feature","properties":{"resourceCoords":[80.1,655.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.432482,40.660663]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017221898:01722_1898-0002__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Avon, Illinois | 1898 | sanborn01722_002 p2 [4]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.15"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5043.6"},{"label":"split_canvas_w","value":"2086.8"},{"label":"split_canvas_h","value":"2608.4"}],"created":"2026-10-18T06:43:25Z","modified":"2026-10-18T06:43:25Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017221898:01722_1898-0002__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017221898:01722_1898-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"84.5,1912.0 91.2,1912.0 509.3,1887.7 504.6,1346.4 452.9,1317.5 430.5,1317.0 430.5,1316.9 430.2,1316.9 430.2,1304.8 408.1,1292.4 134.4,1283.4 133.6,1302.8 62.9,1303.6 63.4,1912.0 84.5,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017221898:01722_1898-0002__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[64.0,1830.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.433557,40.66202]}},{"type":"Feature","properties":{"resourceCoords":[489.7,1298.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.432441,40.6630586]}}]}}]}