{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01815_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Danvers, Illinois | 1901 | 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":"2"},{"label":"placed","value":"2"},{"label":"unplaced","value":"0"},{"label":"fit sources","value":"georef-snap 1, georef 1"},{"label":"key map","value":"none"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018151901:01815_1901-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danvers, Illinois | 1901 | sanborn01815_002 p1","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:19:52Z","modified":"2026-10-18T13:19:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018151901:01815_1901-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018151901:01815_1901-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1540.3,44.3 1597.3,543.2 1532.8,1637.5 1569.0,1872.6 618.1,1893.1 314.8,1781.0 138.8,1797.2 103.5,1714.5 110.3,1506.6 113.2,1211.4 119.0,251.9 89.3,251.6 86.0,31.7 1540.3,44.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018151901:01815_1901-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1028.0,1213.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.17508068874662,40.527715404158776]}},{"type":"Feature","properties":{"resourceCoords":[1469.0,731.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.17404765514992,40.52863118156487]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018151901:01815_1901-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Danvers, Illinois | 1901 | sanborn01815_002 p2","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:19:52Z","modified":"2026-10-18T13:19:52Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018151901:01815_1901-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018151901:01815_1901-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1414.0,1707.0 1170.1,1678.7 1030.4,1790.0 584.5,1785.0 457.8,1680.9 142.4,1636.3 57.4,1324.6 60.0,173.6 163.8,61.3 1480.2,66.2 1484.5,282.6 1513.7,282.8 1512.7,1227.3 1511.3,1517.9 1505.7,1722.6 1414.0,1707.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018151901:01815_1901-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[643.0,282.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.179511,40.529392]}},{"type":"Feature","properties":{"resourceCoords":[208.0,1220.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.180521,40.527611]}}]}}]}