{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn07498_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Ambridge, Pennsylvania | 1905 | 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":"16"},{"label":"placed","value":"13"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 12, georef-snap 2"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"6 sheet(s) cut into 12 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 40.58883,-80.23149 +/-178m); p5__2 (tier 2, 40.58463,-80.22642 +/-272m)"},{"label":"withheld","value":"p1__2 (30.4 km from the catalogue location)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0010__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ambridge, Pennsylvania | 1905 | sanborn07498_001 p10 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4512.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T05:04:44Z","modified":"2026-09-22T05:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0010__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0010/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2787.2,7641.4 2787.2,1573.6 4512.0,1568.0 4509.6,0.0 215.0,50.9 220.0,7625.7 2787.2,7641.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0010__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[220.0,3520.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2305505,40.594997]}},{"type":"Feature","properties":{"resourceCoords":[220.0,7624.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2305281,40.5930359]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0010__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ambridge, Pennsylvania | 1905 | sanborn07498_001 p10 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"label":"split_canvas_x","value":"2787.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3664.8"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T05:04:44Z","modified":"2026-09-22T05:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0010__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0010/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,0.0 4509.6,0.0 4512.0,1568.0 2787.2,1573.6 2787.2,1681.7 3568.6,3304.0 3582.8,7612.3 6452.0,7585.8 6452.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0010__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3582.5,4700.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2305903,40.5979749]}},{"type":"Feature","properties":{"resourceCoords":[3582.5,5432.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2305859,40.5976429]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ambridge, Pennsylvania | 1905 | sanborn07498_001 p2 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"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":"2026-09-22T05:04:44Z","modified":"2026-09-22T05:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0002__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"342.9,6690.7 530.2,6697.2 707.7,7260.0 5136.3,7235.2 4893.4,6849.5 5219.4,6860.9 5191.8,7652.0 6452.0,7652.0 6452.0,5264.4 4242.4,5264.4 4242.4,582.8 -0.0,564.2 -0.0,7652.0 309.3,7652.0 342.9,6690.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[508.0,312.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2258054,40.5815041]}},{"type":"Feature","properties":{"resourceCoords":[2100.0,7264.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2228823,40.5790981]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ambridge, Pennsylvania | 1905 | sanborn07498_001 p2 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"4242.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2209.6"},{"label":"split_canvas_h","value":"5264.4"}],"created":"2026-09-22T05:04:44Z","modified":"2026-09-22T05:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0002__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4242.4,5264.4 6452.0,5264.4 6452.0,0.0 4242.4,-0.0 4242.4,352.0 4648.6,75.5 4839.4,4790.0 4242.4,5100.9 4242.4,5264.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4793.8,3348.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2228823,40.5790981]}},{"type":"Feature","properties":{"resourceCoords":[4793.8,4936.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2236702,40.5787836]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ambridge, Pennsylvania | 1905 | sanborn07498_001 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T05:04:44Z","modified":"2026-09-22T05:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0003/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 -0.0,-0.0 81.7,436.8 6452.0,400.0 6452.0,7652.0 3680.2,7652.0 3680.2,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.2283635634754,40.584455770111326]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.22485583703447,40.58596133640324]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.2225211749683,40.58277961039798]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.22602890140924,40.58127404410607]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ambridge, Pennsylvania | 1905 | sanborn07498_001 p4","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"}],"created":"2026-09-22T05:04:44Z","modified":"2026-09-22T05:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0004/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0004/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 -0.0,-0.0 426.6,0.0 423.0,411.9 5684.7,366.5 5680.5,7382.1 421.2,7406.0 341.8,6955.4 334.9,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2424.0,380.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2292425,40.5875685]}},{"type":"Feature","properties":{"resourceCoords":[2424.0,7400.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2271285,40.584753]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ambridge, Pennsylvania | 1905 | sanborn07498_001 p5 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"6"},{"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":"2026-09-22T05:04:44Z","modified":"2026-09-22T05:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0005__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0005/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"374.7,467.7 388.0,7480.0 1667.4,7496.8 1666.2,7652.0 3032.4,7652.0 4214.4,3581.6 6452.0,3580.8 6452.0,0.0 3461.6,0.0 3461.1,447.3 374.7,467.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[388.0,7480.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2254117,40.5855039]}},{"type":"Feature","properties":{"resourceCoords":[1916.0,7480.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2246021,40.5858515]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ambridge, Pennsylvania | 1905 | sanborn07498_001 p6 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2585.6"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"5066.4"}],"created":"2026-09-22T05:04:44Z","modified":"2026-09-22T05:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0006__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0006/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"420.6,7287.8 5677.8,7263.9 6452.0,4976.7 6452.0,3242.8 3289.2,3245.6 3274.8,2585.6 2911.9,2585.7 -0.0,2886.1 -0.0,6874.7 420.6,7287.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2420.0,7264.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2292425,40.5875685]}},{"type":"Feature","properties":{"resourceCoords":[4048.0,7264.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2283828,40.5879433]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0006__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ambridge, Pennsylvania | 1905 | sanborn07498_001 p6 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"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":"3245.6"}],"created":"2026-09-22T05:04:44Z","modified":"2026-09-22T05:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0006__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0006/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3516.9,1841.7 6452.0,1861.0 6452.0,0.0 0.0,-0.0 419.7,168.8 428.0,2289.1 3513.3,2289.0 3516.9,1841.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0006__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1964.0,2289.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2267111,40.5886722]}},{"type":"Feature","properties":{"resourceCoords":[428.0,2289.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2275222,40.5883186]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0007__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ambridge, Pennsylvania | 1905 | sanborn07498_001 p7 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4064.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3588.0"}],"created":"2026-09-22T05:04:44Z","modified":"2026-09-22T05:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0007__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0007/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4564.0,7652.0 5292.0,7652.0 6452.0,7652.0 6452.0,6318.0 4111.2,4078.3 1174.9,4068.1 -0.0,6909.4 -0.0,7652.0 4564.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0007__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2620.0,4508.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2300703,40.5916248]}},{"type":"Feature","properties":{"resourceCoords":[4100.0,4508.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2296317,40.5902894]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0007__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ambridge, Pennsylvania | 1905 | sanborn07498_001 p7 [2]","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":"6452.0"},{"label":"split_canvas_h","value":"4086.4"}],"created":"2026-09-22T05:04:44Z","modified":"2026-09-22T05:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0007__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0007/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4101.1,3059.4 4095.2,2205.6 5958.2,2192.7 5970.7,4003.3 6452.0,4086.4 6452.0,0.0 -0.0,-0.0 0.0,4064.0 1787.7,4070.2 1787.2,3909.7 4504.0,3880.4 4101.1,3059.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0007__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2604.0,1771.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2328524,40.6004854]}},{"type":"Feature","properties":{"resourceCoords":[2452.0,3902.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2330231,40.5985825]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ambridge, Pennsylvania | 1905 | sanborn07498_001 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T05:04:44Z","modified":"2026-09-22T05:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0008/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0008/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1467.4,7652.0 946.0,7652.0 760.2,5334.5 -0.0,5503.3 -0.0,-0.0 627.8,0.0 634.1,582.4 6039.5,505.7 6050.6,6274.5 6452.0,6193.2 6452.0,7652.0 2982.7,7652.0 2833.0,7049.7 1507.6,7500.8 1467.4,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0008/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.23415964787549,40.5958746466862]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.23031578155096,40.59589573815838]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.23028307016384,40.59240965762947]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.23412693648837,40.59238856615728]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ambridge, Pennsylvania | 1905 | sanborn07498_001 p9","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"14"}],"created":"2026-09-22T05:04:44Z","modified":"2026-09-22T05:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0009/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0009/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"656.7,7156.9 655.8,6576.5 35.3,6571.0 -0.0,1012.6 713.8,1021.8 717.1,676.5 6024.0,688.0 5999.3,7127.9 656.7,7156.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824am:g3824am_g074981905:07498_1905-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3272.0,2800.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.2322453,40.5976223]}},{"type":"Feature","properties":{"resourceCoords":[6024.0,688.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.230607,40.598608]}}]}}]}