{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn01796_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Clayton, Illinois | 1893 | 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":"4"},{"label":"placed","value":"4"},{"label":"unplaced","value":"0"},{"label":"fit sources","value":"georef 3, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 3 panels"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017961893:01796_1893-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clayton, Illinois | 1893 | sanborn01796_002 p1","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T14:46:12Z","modified":"2026-09-23T14:46:12Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017961893:01796_1893-0001/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017961893:01796_1893-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 2126.3,7652.0 2119.2,7204.0 -0.0,7221.7 -0.0,0.0 2132.5,-0.0 2138.4,537.6 4715.8,509.2 4712.3,-0.0 6452.0,-0.0 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017961893:01796_1893-0001/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.95653024506923,40.032134057574204]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.95655441913783,40.02915506520349]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.9611362291999,40.029177172888325]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.9611120551313,40.03215616525904]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017961893:01796_1893-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clayton, Illinois | 1893 | sanborn01796_002 p2 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"5"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3640.8"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T14:46:12Z","modified":"2026-09-23T14:46:12Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017961893:01796_1893-0002__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017961893:01796_1893-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3330.2,3718.0 3615.1,3714.7 3590.4,0.0 -0.0,0.0 -0.0,7652.0 3376.7,7652.0 3330.2,3718.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017961893:01796_1893-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2848.6,2304.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.955655,40.032349]}},{"type":"Feature","properties":{"resourceCoords":[2848.6,7340.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.958753,40.032392]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017961893:01796_1893-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clayton, Illinois | 1893 | sanborn01796_002 p2 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"3590.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2861.6"},{"label":"split_canvas_h","value":"3902.4"}],"created":"2026-09-23T14:46:12Z","modified":"2026-09-23T14:46:12Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017961893:01796_1893-0002__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017961893:01796_1893-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3590.4,0.0 3616.4,3902.4 6156.7,3902.4 6158.8,3398.2 6452.0,3401.4 6452.0,-0.0 3590.4,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017961893:01796_1893-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[3590.4,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.95450012633484,40.031156833763696]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.95449194196063,40.029829783301416]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,3902.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.95685196476327,40.02982123203756]}},{"type":"Feature","properties":{"resourceCoords":[3590.4,3902.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.95686014913748,40.03114828249984]}},{"type":"Feature","properties":{"resourceCoords":[6164.2,2067.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.9557429,40.0299587]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017961893:01796_1893-0002__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clayton, Illinois | 1893 | sanborn01796_002 p2 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"3616.4"},{"label":"split_canvas_y","value":"3902.4"},{"label":"split_canvas_w","value":"2835.6"},{"label":"split_canvas_h","value":"3749.6"}],"created":"2026-09-23T14:46:12Z","modified":"2026-09-23T14:46:12Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017961893:01796_1893-0002__3/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017961893:01796_1893-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,4346.9 6327.4,4345.9 6324.0,3902.4 3616.4,3902.4 3640.8,7652.0 4084.0,7652.0 5184.0,7652.0 6452.0,7652.0 6452.0,4346.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104cm:g017961893:01796_1893-0002__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[3616.4,3902.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.9608551568423,40.03243117820948]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,3902.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.96085159475001,40.03111708985814]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.96311975186566,40.031113477674644]}},{"type":"Feature","properties":{"resourceCoords":[3616.4,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.96312331395795,40.03242756602598]}},{"type":"Feature","properties":{"resourceCoords":[3736.4,5537.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.961844,40.032374]}}]}}]}