{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn02638_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Dysart, Iowa | 1895 | mapsnap generated fit (2026-09-21)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-21"},{"label":"run","value":"corpus-v1"},{"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://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154dm:g026381895:02638_1895-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dysart, Iowa | 1895 | sanborn02638_001 p1","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-21T17:14:20Z","modified":"2026-09-21T17:14:20Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154dm:g026381895:02638_1895-0001/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154dm:g026381895:02638_1895-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 -0.0,-0.0 6452.0,0.0 6452.0,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154dm:g026381895:02638_1895-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4336.0,4596.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.3063529,42.1705771]}},{"type":"Feature","properties":{"resourceCoords":[260.0,4596.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.3090602,42.1706244]}}]}}]}