{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn04309_007.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Heron Lake, Minnesota | 1947 | 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"},{"label":"pages","value":"6"},{"label":"placed","value":"3"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 3"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p1__2 (tier 1, 43.79544,-95.32180 +/-278m); p3__1 (tier 2, 43.79403,-95.31932 +/-354m); p3__2 (tier 2, 43.79403,-95.31932 +/-354m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd414m:g4144m:g4144hm:g043091947:04309_1947-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Heron Lake, Minnesota | 1947 | sanborn04309_007 p1 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3102.4"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4549.6"}],"created":"2026-09-23T07:18:53Z","modified":"2026-09-23T07:18:53Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd414m:g4144m:g4144hm:g043091947:04309_1947-0001__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd414m:g4144m:g4144hm:g043091947:04309_1947-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 6452.0,5671.4 5733.5,5194.3 6300.1,4529.2 5799.3,4537.0 5801.2,3283.6 2446.7,3283.2 2448.3,3391.4 1582.4,3403.4 1578.3,3108.1 0.0,3110.0 0.0,6574.0 0.0,7228.0 -0.0,7652.0 199.6,7652.0 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd414m:g4144m:g4144hm:g043091947:04309_1947-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3592.0,5809.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.323984,43.7911331]}},{"type":"Feature","properties":{"resourceCoords":[3592.0,4561.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.3227977,43.7918817]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd414m:g4144m:g4144hm:g043091947:04309_1947-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Heron Lake, Minnesota | 1947 | sanborn04309_007 p2","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-23T07:18:53Z","modified":"2026-09-23T07:18:53Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd414m:g4144m:g4144hm:g043091947:04309_1947-0002/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd414m:g4144m:g4144hm:g043091947:04309_1947-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1696.0,7440.0 1696.0,7652.0 -0.0,7652.0 -0.0,0.0 6452.0,-0.0 6452.0,1057.0 6086.3,1591.3 6060.2,7521.1 1696.0,7440.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd414m:g4144m:g4144hm:g043091947:04309_1947-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6088.0,2584.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.3183145,43.7934242]}},{"type":"Feature","properties":{"resourceCoords":[1696.0,7440.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.3225316,43.7934364]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd414m:g4144m:g4144hm:g043091947:04309_1947-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Heron Lake, Minnesota | 1947 | sanborn04309_007 p4","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"4"}],"created":"2026-09-23T07:18:53Z","modified":"2026-09-23T07:18:53Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd414m:g4144m:g4144hm:g043091947:04309_1947-0004/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd414m:g4144m:g4144hm:g043091947:04309_1947-0004/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,3540.5 845.7,3641.5 569.2,3239.2 1588.1,2564.5 972.9,1656.1 3414.8,0.0 6452.0,0.0 6452.0,7652.0 -0.0,7652.0 -0.0,3540.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd414m:g4144m:g4144hm:g043091947:04309_1947-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[972.0,1656.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.3206933,43.7918978]}},{"type":"Feature","properties":{"resourceCoords":[4020.0,-416.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.3171339,43.7941931]}}]}}]}