{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02048_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"New Haven, Illinois | 1912 | 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":"4"},{"label":"placed","value":"2"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 37.90811,-88.12536 +/-111m); p1__3 (tier 4, 37.90811,-88.12536 +/-111m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104nm:g020481912:02048_1912-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Haven, Illinois | 1912 | sanborn02048_002 p1 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.17"},{"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":"3036.0"}],"created":"2026-10-18T05:22:50Z","modified":"2026-10-18T05:22:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104nm:g020481912:02048_1912-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104nm:g020481912:02048_1912-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"743.1,757.4 806.0,350.6 806.0,333.5 808.6,333.5 809.4,328.8 1524.9,332.1 1550.3,184.8 1378.5,46.0 1007.3,42.7 713.9,125.7 671.0,269.8 671.0,303.4 661.0,303.3 649.0,343.6 57.5,369.2 49.1,549.8 258.1,728.4 743.1,757.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104nm:g020481912:02048_1912-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[236.0,462.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.126025,37.909329]}},{"type":"Feature","properties":{"resourceCoords":[764.0,462.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.12495,37.908895]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104nm:g020481912:02048_1912-0001__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Haven, Illinois | 1912 | sanborn02048_002 p1 [4]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.74"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2432.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"5220.0"}],"created":"2026-10-18T05:22:50Z","modified":"2026-10-18T05:22:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104nm:g020481912:02048_1912-0001__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104nm:g020481912:02048_1912-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1419.5,677.0 1321.0,677.0 1316.0,677.0 1270.0,677.0 1270.0,667.9 1270.0,656.2 1048.9,625.6 946.0,712.4 872.7,635.4 806.0,753.4 806.0,759.0 802.9,759.0 800.0,764.1 65.5,794.2 14.9,1232.9 62.8,1875.5 1579.1,1906.0 1546.7,694.7 1419.5,677.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104nm:g020481912:02048_1912-0001__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[246.0,1330.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.1271831,37.9075951]}},{"type":"Feature","properties":{"resourceCoords":[1311.0,1330.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.1249743,37.9066827]}}]}}]}