{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn02249_003.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Alexandria, Indiana | 1902 | key map | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd409m:g4094m:g4094am:g02249003:sb000010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alexandria, Indiana | 1902 | sanborn02249_003 p1","metadata":[{"label":"streets","value":"46"},{"label":"intersections","value":"184"}],"created":"2026-09-23T15:43:14Z","modified":"2026-09-23T15:43:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd409m:g4094m:g4094am:g02249003:sb000010/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd409m:g4094m:g4094am:g02249003:sb000010/info.json","type":"ImageService2","height":10200,"width":8576},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,10200.0 -0.0,-0.0 8576.0,-0.0 8576.0,10200.0 -0.0,10200.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd409m:g4094m:g4094am:g02249003:sb000010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3135.1,3292.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.6829541,40.2639283]}},{"type":"Feature","properties":{"resourceCoords":[3489.2,2038.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.680984,40.269416]}}]}}]}