{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02049_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"New Windsor, Illinois | 1916 | 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":"1"},{"label":"placed","value":"1"},{"label":"unplaced","value":"0"},{"label":"fit sources","value":"georef 1"},{"label":"key map","value":"none"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104nm:g020491916:02049_1916-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New Windsor, Illinois | 1916 | sanborn02049_002 p1","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"18"},{"label":"confidence","value":"0.76"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T04:16:31Z","modified":"2026-10-18T04:16:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104nm:g020491916:02049_1916-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104nm:g020491916:02049_1916-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1587.7,1014.4 1578.2,1491.1 1510.7,1559.8 1552.5,1675.2 1511.8,1696.0 1519.6,1811.7 1077.7,1883.5 805.1,1865.5 770.6,1811.3 737.1,1872.8 559.6,1819.9 362.7,1882.9 49.3,1858.3 74.6,53.8 687.1,14.4 1497.8,68.8 1560.7,252.1 1510.7,770.0 1587.7,1014.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104nm:g020491916:02049_1916-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[478.0,949.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.4420421,41.2024038]}},{"type":"Feature","properties":{"resourceCoords":[478.0,1413.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.4432639,41.2024117]}}]}}]}