{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn02753_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Montrose, Iowa | 1913 | 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":"6"},{"label":"placed","value":"6"},{"label":"unplaced","value":"0"},{"label":"fit sources","value":"georef 6"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 6 panels"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Montrose, Iowa | 1913 | sanborn02753_003 p1 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2215.6"},{"label":"split_canvas_h","value":"2160.0"}],"created":"2026-09-21T12:49:35Z","modified":"2026-09-21T12:49:35Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0001__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 0.0,2160.0 2215.6,2136.4 2214.8,0.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.40966580515177,40.52953396834863]}},{"type":"Feature","properties":{"resourceCoords":[2215.6,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.40857386514382,40.53026269742456]}},{"type":"Feature","properties":{"resourceCoords":[2215.6,2160.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.4076385592333,40.52945438512369]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2160.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.40873049924126,40.52872565604776]}},{"type":"Feature","properties":{"resourceCoords":[1355.8,1040.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.4085473,40.5295907]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Montrose, Iowa | 1913 | sanborn02753_003 p1 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-21T12:49:35Z","modified":"2026-09-21T12:49:35Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0001__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2925.5,7652.0 2898.5,6273.0 4492.6,6241.8 4510.4,4248.8 6452.0,4248.4 6452.0,0.0 2214.8,0.0 2215.6,2136.4 351.6,2156.3 299.5,7652.0 2925.5,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2364.0,2056.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.4155925,40.5332186]}},{"type":"Feature","properties":{"resourceCoords":[292.0,6296.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.4149352,40.5309402]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Montrose, Iowa | 1913 | sanborn02753_003 p1 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"4480.0"},{"label":"split_canvas_y","value":"4248.4"},{"label":"split_canvas_w","value":"1972.0"},{"label":"split_canvas_h","value":"3403.6"}],"created":"2026-09-21T12:49:35Z","modified":"2026-09-21T12:49:35Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0001__3/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 6452.0,4248.4 4510.4,4248.8 4480.0,7652.0 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[4480.0,4248.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.41361593434611,40.531750110577676]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,4248.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.4126160869278,40.532376577911585]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.41119505241033,40.5310685025817]}},{"type":"Feature","properties":{"resourceCoords":[4480.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.41219489982865,40.53044203524779]}},{"type":"Feature","properties":{"resourceCoords":[5717.5,6516.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.4120417,40.5312717]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Montrose, Iowa | 1913 | sanborn02753_003 p2 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2126.4"},{"label":"split_canvas_h","value":"1241.2"}],"created":"2026-09-21T12:49:35Z","modified":"2026-09-21T12:49:35Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0002__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 -0.0,1091.0 2106.5,1065.7 2126.4,0.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.41907212566468,40.53178683999571]}},{"type":"Feature","properties":{"resourceCoords":[2126.4,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.41798071499356,40.53244777866551]}},{"type":"Feature","properties":{"resourceCoords":[2126.4,1241.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.41747359024043,40.53196479252179]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1241.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.41856500091156,40.531303853851995]}},{"type":"Feature","properties":{"resourceCoords":[1914.6,1065.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.4176543,40.5319675]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Montrose, Iowa | 1913 | sanborn02753_003 p2 [2]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"20"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-21T12:49:35Z","modified":"2026-09-21T12:49:35Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0002__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 4403.2,7652.0 4407.2,6585.2 6423.8,6582.8 6253.7,137.3 5906.9,144.4 5903.6,0.0 4448.6,0.0 4453.1,174.5 2342.4,218.2 2336.8,0.0 2126.4,0.0 2103.2,1239.6 0.0,1241.2 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2256.0,4412.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.4170171,40.5296724]}},{"type":"Feature","properties":{"resourceCoords":[4256.0,2280.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.4168121,40.5311321]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0002__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Montrose, Iowa | 1913 | sanborn02753_003 p2 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"4403.2"},{"label":"split_canvas_y","value":"6582.8"},{"label":"split_canvas_w","value":"2048.8"},{"label":"split_canvas_h","value":"1069.2"}],"created":"2026-09-21T12:49:35Z","modified":"2026-09-21T12:49:35Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0002__3/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 6452.0,6582.8 4407.2,6585.2 4403.2,7652.0 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154mm:g027531913:02753_1913-0002__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[4403.2,6582.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.41404758996946,40.53026307722306]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,6582.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.41299142382694,40.53089683794551]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.41255546413727,40.53047780701202]}},{"type":"Feature","properties":{"resourceCoords":[4403.2,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.41361163027979,40.52984404628957]}},{"type":"Feature","properties":{"resourceCoords":[6244.3,6714.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.4130448,40.530781]}}]}}]}