{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn02673_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Grinnell, Iowa | 1883 | 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":"4"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 3, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p2__3 (tier 4, 41.74518,-92.72513 +/-989m); p2__4 (tier 4, 41.74518,-92.72513 +/-989m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154gm:g026731883:02673_1883-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Grinnell, Iowa | 1883 | sanborn02673_001 p1","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T09:27:57Z","modified":"2026-09-21T09:27:57Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154gm:g026731883:02673_1883-0001/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154gm:g026731883:02673_1883-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2760.1,7652.0 -0.0,7652.0 -0.0,5987.3 158.3,5985.1 -0.0,-0.0 6452.0,0.0 6452.0,7652.0 5362.0,7652.0 5354.8,7143.1 2749.7,7178.1 2751.4,7257.8 2760.1,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154gm:g026731883:02673_1883-0001/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-92.72739901391124,41.74480492056848]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-92.72338048018285,41.74475317747139]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-92.72346214964669,41.741172035500846]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-92.72748068337508,41.741223778597934]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154gm:g026731883:02673_1883-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Grinnell, Iowa | 1883 | sanborn02673_001 p2 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2541.2"},{"label":"split_canvas_h","value":"2112.0"}],"created":"2026-09-21T09:27:57Z","modified":"2026-09-21T09:27:57Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154gm:g026731883:02673_1883-0002__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154gm:g026731883:02673_1883-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2453.1,436.4 2452.8,-0.0 231.2,0.0 234.7,406.4 0.0,403.2 0.0,2111.2 1420.0,2111.6 2523.2,2112.0 2537.5,437.5 2453.1,436.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154gm:g026731883:02673_1883-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[244.1,1988.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.725759,41.7403382]}},{"type":"Feature","properties":{"resourceCoords":[2473.2,1988.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.7241306,41.7403337]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154gm:g026731883:02673_1883-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Grinnell, Iowa | 1883 | sanborn02673_001 p2 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"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":"5890.4"}],"created":"2026-09-21T09:27:57Z","modified":"2026-09-21T09:27:57Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154gm:g026731883:02673_1883-0002__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154gm:g026731883:02673_1883-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2541.2,0.0 2523.2,2112.0 2513.6,3116.4 1413.2,3111.6 0.0,3106.0 0.0,5690.4 3093.6,5786.0 6024.4,5877.1 5996.2,0.0 2541.2,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154gm:g026731883:02673_1883-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3692.0,3247.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.7288365,41.7432568]}},{"type":"Feature","properties":{"resourceCoords":[3692.0,187.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.7288306,41.7447044]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154gm:g026731883:02673_1883-0002__5/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Grinnell, Iowa | 1883 | sanborn02673_001 p2 [5]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5690.4"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"1961.6"}],"created":"2026-09-21T09:27:57Z","modified":"2026-09-21T09:27:57Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154gm:g026731883:02673_1883-0002__5/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154gm:g026731883:02673_1883-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 6452.0,5890.4 3093.6,5786.0 0.0,5690.4 -0.0,7652.0 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154gm:g026731883:02673_1883-0002__5/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,5690.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-92.72294617815847,41.753959240501]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,5690.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-92.71892448981166,41.75395083202575]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-92.71892791658588,41.75303643581072]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-92.7229496049327,41.75304484428597]}},{"type":"Feature","properties":{"resourceCoords":[676.0,6829.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.7225268,41.7534276]}}]}}]}