{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn04072_003.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Lapeer, Michigan | 1898 | key map | 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"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040721898:04072_1898-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Lapeer, Michigan | 1898 | sanborn04072_003 p1","metadata":[{"label":"streets","value":"34"},{"label":"intersections","value":"117"}],"created":"2026-10-19T01:22:58Z","modified":"2026-10-19T01:22:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040721898:04072_1898-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040721898:04072_1898-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1927.0 0.0,0.0 1628.0,0.0 1628.0,1927.0 0.0,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114lm:g040721898:04072_1898-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[590.9,296.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.3100309,43.0538314]}},{"type":"Feature","properties":{"resourceCoords":[192.8,372.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.3187437,43.0522983]}}]}}]}