{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn07691_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Glenside, Pennsylvania | 1925 | 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":"17"},{"label":"placed","value":"14"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef-snap 8, georef 5, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"1 sheet(s) cut into 2 panels"},{"label":"unplaced pages","value":"p1 (tier 3, 40.10985,-75.14955 +/-744m); p5 (tier 2, 40.10429,-75.16114 +/-162m); p6__2 (tier 1, 40.10356,-75.16398 +/-118m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1925 | sanborn07691_003 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T22:04:44Z","modified":"2026-09-23T22:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0010/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0010/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5601.1,7417.5 815.4,7427.3 859.3,1031.3 1003.5,410.6 1868.3,-0.0 2010.8,-0.0 2263.4,368.4 2692.9,637.0 5633.6,836.3 5514.2,6364.6 5601.1,7417.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0010/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15267848252529,40.110284675364376]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.14640276049106,40.10669701155449]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15192681123791,40.10096405058727]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15820253327215,40.10455171439716]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1925 | sanborn07691_003 p11","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"17"}],"created":"2026-09-23T22:04:44Z","modified":"2026-09-23T22:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0011/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0011/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"797.0,3012.4 1677.6,705.9 1868.4,-0.0 3956.1,-0.0 3988.0,646.0 5008.9,606.6 6200.0,164.8 6060.2,1005.3 6054.8,7145.6 4715.8,7164.3 4744.4,7652.0 1862.8,7652.0 1783.0,7119.6 -0.0,7020.4 -0.0,5599.4 797.0,3012.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5028.0,4552.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1563566,40.1067855]}},{"type":"Feature","properties":{"resourceCoords":[3988.0,648.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.154519,40.1102957]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1925 | sanborn07691_003 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T22:04:44Z","modified":"2026-09-23T22:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0012/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0012/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"519.6,6676.8 427.5,5574.9 813.6,5098.2 -0.0,4446.6 327.3,4014.7 110.6,565.5 2553.4,400.2 2580.3,980.0 3446.4,919.5 3420.5,542.4 4769.6,444.8 6452.0,821.3 6452.0,1285.1 5879.2,3257.8 5287.9,5940.9 5405.7,7375.4 6263.2,7347.0 4966.3,7652.0 1139.6,7516.5 1086.7,6799.4 519.6,6676.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0012/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.16206061304082,40.11617676661315]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15626213468622,40.112209457662516]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.1623712676176,40.10691292454145]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.16816974597221,40.11088023349208]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1925 | sanborn07691_003 p13","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"14"}],"created":"2026-09-23T22:04:44Z","modified":"2026-09-23T22:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0013/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0013/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,0.0 5809.5,-0.0 5804.8,1143.6 5918.8,1144.8 5894.0,4051.3 5531.8,4460.4 6303.5,5184.5 5878.8,5634.2 5889.6,6754.0 6452.0,6923.9 6452.0,7652.0 -0.0,7652.0 -0.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5908.0,2976.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1641833,40.11397]}},{"type":"Feature","properties":{"resourceCoords":[392.0,3052.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1694777,40.1169557]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1925 | sanborn07691_003 p14","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"23"}],"created":"2026-09-23T22:04:44Z","modified":"2026-09-23T22:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0014/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0014/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5068.8,6673.9 4835.8,7652.0 4763.5,7652.0 2201.3,6939.4 1961.1,6833.9 1592.4,6473.6 1408.5,5991.7 335.8,6241.9 112.5,2544.5 312.3,1695.3 -0.0,1461.6 -0.0,857.4 681.6,0.0 6452.0,0.0 6452.0,7189.6 5068.8,6673.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2316.0,4372.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1489135,40.1102294]}},{"type":"Feature","properties":{"resourceCoords":[3832.0,1848.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1460107,40.1117597]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1925 | sanborn07691_003 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T22:04:44Z","modified":"2026-09-23T22:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0015/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0015/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1739.3,6126.5 1442.9,6820.0 1220.5,7222.8 1324.2,6763.0 562.9,6397.6 1514.5,4508.2 1734.7,3074.0 650.4,2828.9 1064.6,0.0 6452.0,0.0 6452.0,557.6 6017.0,593.0 5395.2,1509.7 5440.9,2110.4 5774.0,2325.4 5637.3,3194.4 6144.5,6888.5 4863.2,7175.6 3813.7,7075.7 3873.9,6412.8 1739.3,6126.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0015/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15442342669935,40.11761680818136]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.14774318623189,40.114776627828256]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15211679523611,40.10867480961166]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15879703570357,40.11151498996476]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1925 | sanborn07691_003 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T22:04:44Z","modified":"2026-09-23T22:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0016/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0016/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2642.4,7055.9 127.3,7050.6 115.8,7652.0 -0.0,7652.0 -0.0,0.0 6452.0,-0.0 6452.0,875.2 5311.3,1050.2 5331.3,3939.6 6452.0,4018.3 6452.0,5484.8 5791.0,7518.1 4910.4,7260.1 3520.9,7263.7 3520.5,7652.0 2628.6,7652.0 2642.4,7055.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0016/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15749373173044,40.120820029881095]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15151368603775,40.117270224695744]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15698030762994,40.11180823074626]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.16296035332263,40.115358035931614]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1925 | sanborn07691_003 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T22:04:44Z","modified":"2026-09-23T22:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0002/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"393.1,6808.5 -0.0,3623.2 -0.0,2509.8 -0.0,1053.8 5143.0,340.3 6452.0,7294.4 6452.0,7652.0 2079.6,7652.0 393.1,6808.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15170042199536,40.10189189607195]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.14818963650782,40.10047850958881]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15036568406929,40.09727107321534]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15387646955682,40.098684459698475]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1925 | sanborn07691_003 p3","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"12"}],"created":"2026-09-23T22:04:44Z","modified":"2026-09-23T22:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0003/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,780.1 5921.4,665.9 5842.9,5203.1 6105.3,6189.2 3527.5,6526.8 3823.0,7472.0 380.8,7338.5 338.5,7458.1 446.0,5163.8 -0.0,5143.2 0.0,780.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4376.0,1576.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1549121,40.1020183]}},{"type":"Feature","properties":{"resourceCoords":[3824.0,7472.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1521546,40.100234]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1925 | sanborn07691_003 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T22:04:44Z","modified":"2026-09-23T22:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0004/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0004/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,7612.3 0.0,4525.8 306.8,4039.4 379.3,3579.3 310.7,1787.4 0.0,1753.8 0.0,-0.0 6415.8,0.0 5995.9,7652.0 0.0,7612.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.16073262185384,40.10249467264064]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15855957945355,40.105017722360486]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.1546749135104,40.10303253484019]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15684795591069,40.10050948512034]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1925 | sanborn07691_003 p6 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"2026-09-23T22:04:44Z","modified":"2026-09-23T22:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0006__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0006/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,2786.0 3387.2,2770.8 2794.0,617.2 2679.2,0.0 1964.0,0.0 -0.0,-0.0 -0.0,7652.0 1768.0,7652.0 2928.0,7652.0 6452.0,7652.0 6452.0,2786.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0006__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":[-75.16470314670644,40.108241201041025]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.16130837580434,40.10682861030378]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.16348337364036,40.10372741440308]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.16687814454247,40.10514000514033]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1925 | sanborn07691_003 p7","metadata":[{"label":"streets","value":"15"},{"label":"intersections","value":"22"}],"created":"2026-09-23T22:04:44Z","modified":"2026-09-23T22:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0007/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0007/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 5532.6,0.0 5661.7,1034.3 5617.8,1229.0 5360.9,1619.9 5538.3,1616.8 5899.5,5141.4 6125.2,5133.6 6198.8,7272.0 5935.1,7164.0 6036.9,7652.0 -0.0,7652.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4056.0,780.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1601309,40.1006429]}},{"type":"Feature","properties":{"resourceCoords":[3096.0,6400.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1556336,40.0966572]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1925 | sanborn07691_003 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T22:04:44Z","modified":"2026-09-23T22:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0008/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0008/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 -0.0,3042.1 2161.4,3884.9 3310.5,3538.7 2250.2,580.4 3296.4,441.4 4385.9,416.8 5241.5,2854.5 6298.5,2502.0 6096.1,3100.1 5578.4,4148.4 5129.2,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0008/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15486171538522,40.100334350871634]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.14989243516033,40.104987845203915]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.14272783959895,40.1004479878954]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.14769711982385,40.09579449356312]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1925 | sanborn07691_003 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T22:04:44Z","modified":"2026-09-23T22:04:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0009/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0009/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1776.4,2956.4 1986.3,2363.4 928.5,2700.0 109.8,260.0 5531.1,178.6 5379.8,1618.4 6452.0,1349.3 6452.0,7652.0 -0.0,7652.0 -0.0,7467.0 750.6,7477.3 1246.3,3993.5 1776.4,2956.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911925:07691_1925-0009/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.1514240546261,40.10332222545981]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.14652001089064,40.108045885729354]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.13924705654163,40.10356583085507]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.1441511002771,40.09884217058553]}}]}}]}