{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03980_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Davison, Michigan | 1921 | 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 2"},{"label":"key map","value":"none"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g039801921:03980_1921-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Davison, Michigan | 1921 | sanborn03980_003 p1","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T19:37:08Z","modified":"2026-10-18T19:37:08Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g039801921:03980_1921-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g039801921:03980_1921-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1553.7,33.2 1621.1,271.4 1608.7,1447.2 1501.9,1884.3 435.4,1895.1 56.5,1803.5 25.9,539.5 74.6,40.3 292.8,38.6 814.2,20.6 1461.5,15.1 1461.6,27.7 1553.7,33.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g039801921:03980_1921-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[769.0,1129.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.51677087095578,43.03084814357305]}},{"type":"Feature","properties":{"resourceCoords":[769.0,612.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.5167845757544,43.031802979996144]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g039801921:03980_1921-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Davison, Michigan | 1921 | sanborn03980_003 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T19:37:08Z","modified":"2026-10-18T19:37:08Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g039801921:03980_1921-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g039801921:03980_1921-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1603.4,236.2 1590.8,236.2 1593.4,883.3 1609.1,1404.6 1609.9,1622.7 1605.7,1622.2 1601.8,1885.0 1557.6,1906.3 75.5,1891.6 32.5,854.1 43.4,613.3 102.7,555.8 39.5,386.9 59.4,29.4 1534.4,29.4 1598.4,147.2 1609.3,144.2 1603.4,236.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114dm:g039801921:03980_1921-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[626.0,927.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.51683280817802,43.03468216892268]}},{"type":"Feature","properties":{"resourceCoords":[1571.0,225.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.51502308984196,43.03295563792843]}}]}}]}