{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn05254_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Stromsburg, Nebraska | 1922 | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"6"},{"label":"placed","value":"2"},{"label":"unplaced","value":"4"},{"label":"fit sources","value":"georef-snap 1, georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p1__1 (tier 2, 41.11464,-97.59228 +/-100m); p1__2 (tier 1, 41.11064,-97.59788 +/-186m); p4__1 (tier 2, 41.11426,-97.59961 +/-100m); p4__2 (tier 2, 41.11426,-97.59961 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194sm:g052541922:05254_1922-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Stromsburg, Nebraska | 1922 | sanborn05254_004 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:00:02Z","modified":"2026-09-22T09:00:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194sm:g052541922:05254_1922-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194sm:g052541922:05254_1922-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"23.1,1913.0 31.3,536.3 -0.0,536.2 0.0,0.0 1613.0,0.0 1613.0,1913.0 23.1,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194sm:g052541922:05254_1922-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.59562686348123,41.116558005052816]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.59169012700177,41.1165727297668]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.59166710984607,41.113030369222024]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.59560384632553,41.11301564450804]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194sm:g052541922:05254_1922-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Stromsburg, Nebraska | 1922 | sanborn05254_004 p3","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-22T09:00:02Z","modified":"2026-09-22T09:00:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194sm:g052541922:05254_1922-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194sm:g052541922:05254_1922-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1579.5,0.0 1581.2,1262.8 1613.0,1262.7 1613.0,1913.0 -0.0,1913.0 -0.0,-0.0 1579.5,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd419m:g4194m:g4194sm:g052541922:05254_1922-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[537.0,1239.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.5983377,41.1130624]}},{"type":"Feature","properties":{"resourceCoords":[1052.0,1239.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.5969563,41.1130632]}}]}}]}