{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01703_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Amboy, Illinois | 1918 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"14"},{"label":"placed","value":"9"},{"label":"unplaced","value":"5"},{"label":"fit sources","value":"georef 5, georef-snap 4"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"1 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 41.71377,-89.33086 +/-207m); p1__2 (tier 1, 41.71714,-89.33866 +/-136m); p1__4 (tier 1, 41.71291,-89.32789 +/-100m); p1__5 (tier 1, 41.71544,-89.32840 +/-100m); p4__4 (tier 1, 41.71164,-89.33935 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Amboy, Illinois | 1918 | sanborn01703_006 p1 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.32"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2650.0"},{"label":"split_canvas_y","value":"4450.0"},{"label":"split_canvas_w","value":"1707.6"},{"label":"split_canvas_h","value":"986.0"}],"created":"2026-10-19T20:34:02Z","modified":"2026-10-19T20:34:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"686.1,1288.6 705.7,1237.0 803.9,1305.0 1030.2,1294.7 1059.1,1126.7 686.5,1136.3 686.1,1288.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[662.5,1112.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.33903043546022,41.717231849810304]}},{"type":"Feature","properties":{"resourceCoords":[1089.4,1112.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.33797571524832,41.7171958187256]}},{"type":"Feature","properties":{"resourceCoords":[1089.4,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.33800344269534,41.71673720940431]}},{"type":"Feature","properties":{"resourceCoords":[662.5,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.33905816290724,41.71677324048901]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Amboy, Illinois | 1918 | sanborn01703_006 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T20:34:02Z","modified":"2026-10-19T20:34:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"271.6,92.8 296.2,118.0 999.3,126.8 1000.0,89.4 1580.2,169.6 1576.2,474.6 1564.3,962.5 1562.3,1234.2 1570.3,1231.3 1563.7,1861.5 1477.1,1811.8 1083.7,1874.8 1011.5,1787.0 895.0,1786.2 858.2,1858.8 57.6,1868.3 47.9,1096.8 107.4,893.5 75.3,216.4 2.8,173.6 271.6,92.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[988.0,466.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.33229389299576,41.71499346531479]}},{"type":"Feature","properties":{"resourceCoords":[1562.0,1259.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.33085613195556,41.71353022171714]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Amboy, Illinois | 1918 | sanborn01703_006 p3","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T20:34:02Z","modified":"2026-10-19T20:34:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"58.5,1199.0 50.5,1201.8 50.9,929.4 60.0,440.0 62.4,112.8 652.6,97.1 652.6,103.4 971.8,92.6 971.9,111.2 1258.0,222.6 1258.1,213.0 1600.4,364.1 1545.6,366.6 1538.0,928.5 1596.2,1264.3 1530.2,1855.4 647.0,1884.2 420.8,1832.9 136.2,1876.6 55.5,1830.9 58.5,1199.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[650.0,440.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.3293723,41.714985]}},{"type":"Feature","properties":{"resourceCoords":[60.0,440.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.3308332,41.7149844]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Amboy, Illinois | 1918 | sanborn01703_006 p4 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.63"},{"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":"4396.0"},{"label":"split_canvas_h","value":"1252.0"}],"created":"2026-10-19T20:34:02Z","modified":"2026-10-19T20:34:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"504.5,266.6 765.0,265.1 1017.1,264.1 1098.0,263.8 1098.0,255.2 1098.0,250.7 1073.1,250.9 1057.3,106.0 904.4,13.0 252.2,25.9 151.4,99.3 144.9,186.4 1.0,170.2 1.0,208.6 504.5,266.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.33105423691266,41.71915335363191]}},{"type":"Feature","properties":{"resourceCoords":[1099.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.32831368472095,41.71913568399461]}},{"type":"Feature","properties":{"resourceCoords":[1099.0,313.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.32832043258672,41.71855359073866]}},{"type":"Feature","properties":{"resourceCoords":[0.0,313.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.33106098477843,41.71857126037596]}},{"type":"Feature","properties":{"resourceCoords":[105.0,269.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.3307982,41.7186514]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Amboy, Illinois | 1918 | sanborn01703_006 p4 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.46"},{"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":"2026-10-19T20:34:02Z","modified":"2026-10-19T20:34:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0004__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1485.3,122.8 1183.4,92.8 1053.7,608.1 57.4,611.7 64.3,1388.2 392.2,1441.0 432.5,1441.0 432.5,1441.0 432.5,1441.0 432.5,1441.2 460.7,1827.8 564.4,1885.7 832.8,1797.8 858.2,1822.5 1565.8,1814.0 1563.1,1167.3 1542.8,163.5 1485.7,164.7 1485.3,122.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1560.0,1180.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.33225680638492,41.71678980724414]}},{"type":"Feature","properties":{"resourceCoords":[1560.0,188.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.33221184047908,41.71861641689543]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0004__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Amboy, Illinois | 1918 | sanborn01703_006 p4 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.94"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"1252.0"},{"label":"split_canvas_w","value":"2142.0"},{"label":"split_canvas_h","value":"1162.0"}],"created":"2026-10-19T20:34:02Z","modified":"2026-10-19T20:34:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0004__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"8.4,339.2 14.7,599.9 514.3,587.4 515.3,326.7 8.4,339.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0004__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,313.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.33754943334168,41.71548062427688]}},{"type":"Feature","properties":{"resourceCoords":[535.5,313.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.33621278210705,41.715484510350805]}},{"type":"Feature","properties":{"resourceCoords":[535.5,603.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.33620995311705,41.71494331488623]}},{"type":"Feature","properties":{"resourceCoords":[0.0,603.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.33754660435167,41.7149394288123]}},{"type":"Feature","properties":{"resourceCoords":[73.9,579.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.3373623,41.7149846]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0004__5/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Amboy, Illinois | 1918 | sanborn01703_006 p4 [5]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.76"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5764.0"},{"label":"split_canvas_w","value":"1730.0"},{"label":"split_canvas_h","value":"1888.0"}],"created":"2026-10-19T20:34:02Z","modified":"2026-10-19T20:34:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0004__5/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"131.3,1506.8 150.8,1473.0 12.9,1466.2 14.5,1901.4 413.5,1900.0 412.0,1472.0 216.1,1465.5 213.6,1520.7 172.8,1530.9 131.3,1506.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0004__5/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1441.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.33999983330251,41.713198987745095]}},{"type":"Feature","properties":{"resourceCoords":[432.5,1441.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.33892253060529,41.713196200270104]}},{"type":"Feature","properties":{"resourceCoords":[432.5,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.33892661437633,41.71231838355914]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.34000391707356,41.712321171034134]}},{"type":"Feature","properties":{"resourceCoords":[396.4,1475.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.3390126,41.7131332]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Amboy, Illinois | 1918 | sanborn01703_006 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T20:34:02Z","modified":"2026-10-19T20:34:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1522.4,166.2 1308.0,167.3 1046.0,169.0 538.2,111.0 538.2,72.5 443.1,61.8 196.1,151.7 1.0,130.6 1.0,172.3 56.8,171.6 68.2,1171.0 65.4,1777.2 647.9,1848.4 647.8,1827.0 1237.3,1805.5 1237.3,1811.8 1556.0,1797.8 1544.5,1156.0 1536.8,1156.1 1522.4,166.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[646.0,1170.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.33081663397685,41.716804763139834]}},{"type":"Feature","properties":{"resourceCoords":[73.0,174.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.3322131974943,41.718657316136536]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Amboy, Illinois | 1918 | sanborn01703_006 p6","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.51"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T20:34:02Z","modified":"2026-10-19T20:34:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"84.3,996.7 76.8,996.7 72.2,36.2 110.3,36.4 189.3,36.8 189.4,24.0 1311.2,24.2 1537.5,151.7 1488.0,370.9 1530.5,378.1 1502.1,477.1 1594.0,746.0 1558.5,1842.6 698.9,1882.4 367.0,1736.1 367.0,1745.3 89.6,1637.5 84.3,996.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017031918:01703_1918-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1018.0,998.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.3262045,41.7168127]}},{"type":"Feature","properties":{"resourceCoords":[1018.0,26.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.326205,41.718666]}}]}}]}