{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn07660_007.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Erie, Pennsylvania | 1950 | 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":"115"},{"label":"placed","value":"93"},{"label":"unplaced","value":"22"},{"label":"fit sources","value":"georef 72, georef-snap 20, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"4 sheet(s) cut into 15 panels"},{"label":"unplaced pages","value":"p0 (tier 1, 42.09356,-80.11208 +/-252m); p227 (tier 1, 42.10806,-80.11805 +/-260m); p228 (tier 1, 42.10179,-80.11511 +/-257m); p234 (tier 1, 42.10216,-80.11247 +/-260m); p235 (tier 1, 42.10457,-80.11112 +/-123m); p236 (tier 2, 42.11009,-80.11060 +/-100m); p237 (tier 2, 42.11078,-80.10410 +/-100m); p239 (tier 2, 42.10747,-80.10542 +/-202m); p291 (tier 2, 42.10549,-80.07678 +/-262m); p298__2 (tier 1, 42.10157,-80.08514 +/-100m); p401__1 (tier 2, 42.11062,-80.12718 +/-100m); p401__2 (tier 1, 42.11333,-80.12379 +/-158m); p401__3 (tier 2, 42.11062,-80.12718 +/-100m); p401__4 (tier 1, 42.11151,-80.12633 +/-120m); p401__5 (tier 1, 42.11493,-80.13167 +/-118m); p403__2 (tier 1, 42.11564,-80.13172 +/-182m); p405__1 (tier 4, 42.11146,-80.10347 +/-5859m); p405__2 (tier 4, 42.11146,-80.10347 +/-5859m); p405__3 (tier 4, 42.11146,-80.10347 +/-5859m); p405__4 (tier 4, 42.11146,-80.10347 +/-5859m); p405__5 (tier 4, 42.11146,-80.10347 +/-5859m); p405__6 (tier 4, 42.11146,-80.10347 +/-5859m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0201/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p201","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0201/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0201/info.json","type":"ImageService2","height":7796,"width":6740},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 6740.0,0.0 6740.0,7339.7 3176.4,7353.6 2803.5,7382.5 2661.7,7587.0 2662.5,7796.0 360.6,7796.0 425.7,7744.4 -0.0,7796.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0201/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4896.0,7344.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1062017,42.1265871]}},{"type":"Feature","properties":{"resourceCoords":[6152.0,7344.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1048597,42.1270728]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0202/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p202","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0202/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0202/info.json","type":"ImageService2","height":7796,"width":6668},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1123.3,7353.6 1176.6,117.9 -0.0,109.7 -0.0,-0.0 6668.0,0.0 6668.0,7351.6 1123.3,7353.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0202/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1816.0,7348.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1034904,42.127583]}},{"type":"Feature","properties":{"resourceCoords":[6224.0,7348.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0987256,42.129338]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0203/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p203","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0203/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0203/info.json","type":"ImageService2","height":7796,"width":6740},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5551.1,830.8 5412.7,1236.0 5554.6,4688.2 5495.8,4727.8 6082.5,6644.9 4252.7,6703.6 4293.5,7796.0 4089.7,7796.0 2122.0,6815.0 1498.9,6821.2 1491.2,6617.0 1176.9,6518.3 71.8,6612.0 -0.0,0.0 5304.0,88.4 5551.1,830.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0203/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.11846106698124,42.12190739909332]}},{"type":"Feature","properties":{"resourceCoords":[6740.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.11485792559975,42.12314483939135]}},{"type":"Feature","properties":{"resourceCoords":[6740.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.11294174014147,42.12003174788705]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.11654488152296,42.11879430758901]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0204/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p204","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"1"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0204/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0204/info.json","type":"ImageService2","height":7796,"width":6668},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6668.0,7455.1 -0.0,7543.8 -0.0,-0.0 2291.5,0.0 6668.0,2413.8 6668.0,7455.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0204/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.11683309018903,42.11915915172518]}},{"type":"Feature","properties":{"resourceCoords":[6668.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.11319031196224,42.12044319304688]}},{"type":"Feature","properties":{"resourceCoords":[6668.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.11116843773245,42.11728084203481]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.11481121595924,42.115996800713106]}},{"type":"Feature","properties":{"resourceCoords":[1196.0,7532.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1142263,42.1163342]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0205/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p205","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0205/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0205/info.json","type":"ImageService2","height":7796,"width":6740},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,596.6 -0.0,-0.0 6740.0,0.0 6740.0,5186.9 5909.5,5705.1 5974.3,5964.8 6031.0,7513.0 2024.6,7456.9 -0.0,596.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0205/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.11651327564594,42.12300448222342]}},{"type":"Feature","properties":{"resourceCoords":[6740.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.11287369991332,42.12424930002985]}},{"type":"Feature","properties":{"resourceCoords":[6740.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.1109460484062,42.121104797863175]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.11458562413883,42.119859980056745]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0206/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p206","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0206/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0206/info.json","type":"ImageService2","height":7796,"width":6652},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"76.9,1283.9 -0.0,-0.0 5384.7,0.0 5376.2,180.6 5689.7,187.3 5628.3,7237.2 5462.5,7556.9 2246.1,7561.0 2359.7,2543.7 76.9,1283.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0206/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3408.0,5192.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1112723,42.1186091]}},{"type":"Feature","properties":{"resourceCoords":[3408.0,7564.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.110625,42.1176532]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0207/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p207","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0207/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0207/info.json","type":"ImageService2","height":7796,"width":6740},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1244.0,5064.0 2124.3,4700.7 2940.9,0.0 5454.7,0.0 5435.2,133.3 5050.8,82.4 4409.9,4919.3 5548.0,5064.0 5201.3,7351.1 1082.6,6770.6 1244.0,5064.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0207/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1244.0,5064.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1119188,42.1217865]}},{"type":"Feature","properties":{"resourceCoords":[5548.0,5064.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1096888,42.122916]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0208/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p208","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0208/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0208/info.json","type":"ImageService2","height":7796,"width":6664},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,5077.6 -0.0,-0.0 403.5,0.0 388.6,1111.0 5639.0,1181.4 5642.3,832.4 5870.6,450.1 6664.0,331.4 6664.0,7507.5 5578.2,7505.8 5580.3,7279.2 1153.2,7249.3 1193.9,5071.3 -0.0,5077.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0208/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5600.0,2712.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.107958,42.1247459]}},{"type":"Feature","properties":{"resourceCoords":[5600.0,5104.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1073086,42.1237906]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0209/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p209","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0209/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0209/info.json","type":"ImageService2","height":7796,"width":6740},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4753.1,311.0 4799.7,7446.9 2307.4,7468.0 2235.5,323.2 2235.4,314.4 4753.1,311.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0209/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1200.0,2704.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.107958,42.1247459]}},{"type":"Feature","properties":{"resourceCoords":[5612.0,7440.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1042957,42.1237116]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0210/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p210","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0210/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0210/info.json","type":"ImageService2","height":7796,"width":6664},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7394.5 -0.0,264.4 5874.2,316.6 5833.2,7796.0 812.7,7796.0 814.8,7397.2 -0.0,7394.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0210/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.1067389258473,42.1265214020189]}},{"type":"Feature","properties":{"resourceCoords":[6664.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.10315096670232,42.12787019291505]}},{"type":"Feature","properties":{"resourceCoords":[6664.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.10103838440146,42.124735087397944]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.10462634354644,42.1233862965018]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0211/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p211","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0211/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0211/info.json","type":"ImageService2","height":7796,"width":6740},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5623.9,7491.0 1209.3,7490.7 1226.1,310.3 5636.2,303.6 5623.9,7491.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0211/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1220.0,2700.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.102854,42.1266249]}},{"type":"Feature","properties":{"resourceCoords":[1220.0,5096.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1022126,42.1256655]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0212/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p212","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0212/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0212/info.json","type":"ImageService2","height":7796,"width":6664},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1204.1,7482.8 1230.0,331.6 6511.7,351.2 6512.2,0.0 6664.0,0.0 6664.0,7796.0 6610.7,7483.9 1204.1,7482.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0212/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5596.0,2720.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0981006,42.128376]}},{"type":"Feature","properties":{"resourceCoords":[5596.0,7480.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.096815,42.1264622]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0213/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p213","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0213/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0213/info.json","type":"ImageService2","height":7796,"width":6740},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,5240.3 -0.0,4169.6 -0.0,2714.7 1108.6,229.9 5396.0,236.0 5396.0,7588.0 920.7,7590.9 -0.0,5240.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0213/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5396.0,7588.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1070719,42.1189711]}},{"type":"Feature","properties":{"resourceCoords":[5396.0,236.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1090596,42.1219457]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0214/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p214","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0214/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0214/info.json","type":"ImageService2","height":7796,"width":6664},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5589.9,7582.2 1220.0,7580.0 1226.3,0.0 5610.9,0.0 5589.9,7582.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0214/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5604.0,2692.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.106004,42.1218278]}},{"type":"Feature","properties":{"resourceCoords":[1220.0,7580.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1070719,42.1189711]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0215/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p215","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0215/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0215/info.json","type":"ImageService2","height":7796,"width":6740},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5641.4,176.9 5647.6,7607.7 1247.2,7627.0 1244.0,212.0 5641.4,176.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0215/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1244.0,5240.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.105327,42.120806]}},{"type":"Feature","properties":{"resourceCoords":[1244.0,212.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1066683,42.122827]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0216/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p216","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"18"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0216/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0216/info.json","type":"ImageService2","height":7796,"width":6664},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"765.3,616.6 5775.4,538.7 5812.0,7608.0 798.4,7638.2 765.3,616.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0216/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3300.0,5228.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1015888,42.1221896]}},{"type":"Feature","properties":{"resourceCoords":[5812.0,7608.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0995925,42.1217236]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0217/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p217","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0217/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0217/info.json","type":"ImageService2","height":7796,"width":6740},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5571.7,127.6 5604.4,7796.0 1167.4,7796.0 1140.0,152.0 5571.7,127.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0217/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5604.0,7580.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0972119,42.1226084]}},{"type":"Feature","properties":{"resourceCoords":[1140.0,152.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1015773,42.1247045]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0218/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p218","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0218/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0218/info.json","type":"ImageService2","height":7796,"width":6684},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6684.0,7660.2 1210.0,7636.0 1230.9,188.7 6684.0,190.2 6684.0,7660.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0218/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1208.0,2728.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0985263,42.1245649]}},{"type":"Feature","properties":{"resourceCoords":[1212.0,7636.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0972119,42.1226084]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0219/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p219","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0219/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0219/info.json","type":"ImageService2","height":7796,"width":6720},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5423.1,5121.8 5553.5,6320.1 5419.0,7515.3 1496.0,7488.7 1484.4,199.4 5474.1,234.9 5423.1,5121.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0219/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1096.0,2556.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1135775,42.1153727]}},{"type":"Feature","properties":{"resourceCoords":[1096.0,196.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1142263,42.1163342]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0220/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p220","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0220/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0220/info.json","type":"ImageService2","height":7796,"width":6684},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4477.7,7796.0 1247.0,7796.0 1239.6,6840.3 1373.0,6368.7 1248.3,5163.3 1325.4,250.2 5664.8,260.4 5563.9,7589.3 5425.0,7588.1 4480.2,7580.6 4477.7,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0220/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5604.0,5100.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1081406,42.1161283]}},{"type":"Feature","properties":{"resourceCoords":[5604.0,260.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1094779,42.1180844]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0221/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p221","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0221/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0221/info.json","type":"ImageService2","height":7796,"width":6720},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1052.0,7564.0 1096.8,192.2 5460.0,196.0 5444.4,7560.5 1052.0,7564.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0221/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5460.0,196.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1070719,42.1189711]}},{"type":"Feature","properties":{"resourceCoords":[1052.0,7564.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1074747,42.1151141]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0222/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p222","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0222/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0222/info.json","type":"ImageService2","height":7796,"width":6684},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1293.5,7571.8 1260.0,212.0 5636.6,189.6 5658.1,7551.2 1293.5,7571.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0222/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1280.0,2584.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1064275,42.1180145]}},{"type":"Feature","properties":{"resourceCoords":[1280.0,5084.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1057598,42.1170021]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0223/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p223","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"3"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0223/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0223/info.json","type":"ImageService2","height":7796,"width":6720},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1092.2,7478.6 1092.0,232.0 5395.5,213.5 5399.2,7462.1 1092.2,7478.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0223/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1092.0,2592.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1040444,42.1188777]}},{"type":"Feature","properties":{"resourceCoords":[1092.0,232.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1046885,42.1198472]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0224/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p224","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0224/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0224/info.json","type":"ImageService2","height":7796,"width":6684},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"798.2,113.5 4731.5,95.8 4812.3,7536.2 824.0,7568.0 798.2,113.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0224/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5852.0,1308.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.09927,42.1212372]}},{"type":"Feature","properties":{"resourceCoords":[824.0,7568.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1003298,42.117749]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0225/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p225","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0225/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0225/info.json","type":"ImageService2","height":7796,"width":6720},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,157.2 1134.7,164.4 1133.5,341.3 5635.7,389.8 5570.9,7796.0 -0.0,7710.8 -0.0,157.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0225/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1124.0,2592.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0989534,42.12077]}},{"type":"Feature","properties":{"resourceCoords":[1124.0,1400.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.09927,42.1212372]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0226/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p226","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0226/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0226/info.json","type":"ImageService2","height":7796,"width":6648},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6648.0,7506.7 1185.8,7538.8 1164.0,152.0 6586.4,131.6 6648.0,0.0 6648.0,7506.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0226/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1164.0,2536.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.096578,42.1216451]}},{"type":"Feature","properties":{"resourceCoords":[1164.0,152.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0972119,42.1226084]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0229/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p229","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0229/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0229/info.json","type":"ImageService2","height":7796,"width":6716},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5373.4,7796.0 -0.0,7727.3 -0.0,5306.4 491.8,3633.4 583.0,2861.9 119.4,0.0 6716.0,0.0 6716.0,7685.3 5375.3,7693.7 5373.4,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0229/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.1214245785418,42.112635001152974]}},{"type":"Feature","properties":{"resourceCoords":[6716.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.11771552119694,42.11406766072677]}},{"type":"Feature","properties":{"resourceCoords":[6716.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.1154894468324,42.11085111913215]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.11919850417726,42.109418459558356]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0232/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p232","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0232/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0232/info.json","type":"ImageService2","height":7796,"width":6688},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6688.0,5202.0 6688.0,7796.0 -0.0,7796.0 -0.0,175.3 1416.9,170.8 1413.7,0.0 6603.4,0.0 6594.6,5201.3 6688.0,5202.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0232/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.1163127621595,42.110688664607785]}},{"type":"Feature","properties":{"resourceCoords":[6688.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.11278539875599,42.11198857078141]}},{"type":"Feature","properties":{"resourceCoords":[6688.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.1107572165848,42.10891667567258]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.11428457998831,42.107616769498954]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0233/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p233","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0233/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0233/info.json","type":"ImageService2","height":7796,"width":6716},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6716.0,7796.0 -0.0,7796.0 -0.0,511.2 2239.7,484.4 2240.2,465.6 2236.0,312.0 6716.0,294.7 6716.0,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0233/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2236.0,2828.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1115824,42.1123479]}},{"type":"Feature","properties":{"resourceCoords":[2236.0,312.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.112245,42.1133558]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0238/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p238","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0238/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0238/info.json","type":"ImageService2","height":7796,"width":6688},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 3627.5,0.0 3512.9,196.3 6688.0,232.0 6688.0,7628.4 6241.9,7624.8 6241.8,7796.0 -0.0,7796.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0238/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4092.0,7624.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.113407,42.112923]}},{"type":"Feature","properties":{"resourceCoords":[6296.0,228.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1142263,42.1163342]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0240/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p240","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0240/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0240/info.json","type":"ImageService2","height":7796,"width":6688},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,6913.2 -0.0,1093.1 5572.5,1100.5 5587.0,6933.3 -0.0,6913.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0240/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.10487416316715,42.11004343518215]}},{"type":"Feature","properties":{"resourceCoords":[6688.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.10126246132876,42.11137636881426]}},{"type":"Feature","properties":{"resourceCoords":[6688.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.09918277487832,42.10823098472203]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.10279447671671,42.106898051089914]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0241/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p241","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0241/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0241/info.json","type":"ImageService2","height":7796,"width":6680},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5455.5,3058.3 -0.0,3075.5 -0.0,600.9 5448.0,576.0 5455.5,3058.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0241/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1092.0,3072.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1068015,42.1141095]}},{"type":"Feature","properties":{"resourceCoords":[5448.0,576.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.105088,42.1159973]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0242/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p242","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0242/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0242/info.json","type":"ImageService2","height":7796,"width":6688},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1071.1,562.2 5468.0,560.0 5468.0,5878.6 1081.3,5877.6 1081.2,5837.8 -0.0,5839.1 -0.0,3078.0 1075.9,3076.0 1071.1,562.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0242/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1076.0,3076.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1044134,42.1149894]}},{"type":"Feature","properties":{"resourceCoords":[5468.0,560.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1027106,42.1168703]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0243/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p243","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0243/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0243/info.json","type":"ImageService2","height":7796,"width":6680},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5635.1,0.0 5606.9,7796.0 -0.0,7796.0 -0.0,-0.0 5635.1,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0243/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1300.0,4784.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.104747,42.111066]}},{"type":"Feature","properties":{"resourceCoords":[5612.0,4784.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1023862,42.1119344]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0244/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p244","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0244/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0244/info.json","type":"ImageService2","height":7796,"width":6700},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1195.4,7796.0 1212.4,0.0 5562.5,0.0 5563.6,7796.0 1195.4,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0244/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1196.0,4768.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1023862,42.1119344]}},{"type":"Feature","properties":{"resourceCoords":[5564.0,7568.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0992491,42.1116747]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0245/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p245","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0245/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0245/info.json","type":"ImageService2","height":7796,"width":6680},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1025.3,588.6 6680.0,583.2 6680.0,7796.0 1009.8,7796.0 1025.3,588.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0245/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1020.0,3080.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1020402,42.1158638]}},{"type":"Feature","properties":{"resourceCoords":[5392.0,3080.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0996616,42.1167402]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0246/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p246","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0246/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0246/info.json","type":"ImageService2","height":7796,"width":6700},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2241.5,7796.0 2232.0,591.8 5985.6,579.7 5980.0,3108.0 4818.4,3106.7 4826.1,7796.0 2241.5,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0246/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5980.0,3108.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0969399,42.1177415]}},{"type":"Feature","properties":{"resourceCoords":[944.0,596.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1003298,42.117749]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0247/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p247","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0247/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0247/info.json","type":"ImageService2","height":7796,"width":6720},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1210.7,1928.4 6720.0,1889.9 6720.0,7579.7 5654.0,7588.8 5650.5,6770.5 1236.0,6829.1 1210.7,1928.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0247/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5632.0,2424.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0982389,42.1146281]}},{"type":"Feature","properties":{"resourceCoords":[1240.0,7612.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0992491,42.1116747]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0248/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p248","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0248/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0248/info.json","type":"ImageService2","height":7796,"width":6712},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1959.0,1875.6 6712.0,1831.7 6712.0,7528.8 1935.4,7551.3 1959.0,1875.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0248/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3352.0,2400.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0968923,42.1151227]}},{"type":"Feature","properties":{"resourceCoords":[872.0,7556.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0968582,42.1125518]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0249/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p249","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0249/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0249/info.json","type":"ImageService2","height":7796,"width":6720},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6720.0,516.6 6720.0,6585.8 5573.7,6582.5 5567.4,7796.0 -0.0,7796.0 -0.0,3044.4 1168.0,3048.0 1177.7,519.2 6720.0,516.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0249/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1168.0,3048.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0969399,42.1177415]}},{"type":"Feature","properties":{"resourceCoords":[5592.0,3048.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0945672,42.1186171]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0250/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p250","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0250/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0250/info.json","type":"ImageService2","height":7796,"width":6712},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2223.0,492.7 6712.0,502.1 6659.2,6473.1 2252.2,6458.8 2223.0,492.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0250/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.09597752427275,42.11960161869242]}},{"type":"Feature","properties":{"resourceCoords":[6712.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.09233087923639,42.120948677106625]}},{"type":"Feature","properties":{"resourceCoords":[6712.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.09023632733968,42.11778473476757]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.09388297237605,42.116437676353364]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0251/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p251","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0251/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0251/info.json","type":"ImageService2","height":7796,"width":6720},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5614.3,6802.4 2072.2,6819.8 2078.8,1102.5 5604.5,1095.3 5614.3,6802.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0251/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1208.0,1636.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0955473,42.1156325]}},{"type":"Feature","properties":{"resourceCoords":[1208.0,6824.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0941589,42.1135502]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0252/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p252","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0252/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0252/info.json","type":"ImageService2","height":7796,"width":6712},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6712.0,6796.3 1243.4,6799.5 1233.2,0.0 6712.0,0.0 6712.0,6796.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0252/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1240.0,4860.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0923103,42.1152247]}},{"type":"Feature","properties":{"resourceCoords":[5580.0,4860.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0899226,42.1160995]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0253/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p253","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0253/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0253/info.json","type":"ImageService2","height":7796,"width":6720},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0,7796 0,0 6720,0 6720,7796 0,7796\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0253/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1332.0,2788.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1034606,42.1091109]}},{"type":"Feature","properties":{"resourceCoords":[5708.0,6828.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1000075,42.1083596]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0254/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p254","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0254/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0254/info.json","type":"ImageService2","height":7796,"width":6712},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5651.5,6795.4 1280.0,6818.0 1287.0,1014.6 5655.4,1018.0 5651.5,6795.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0254/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1280.0,6816.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1000075,42.1083596]}},{"type":"Feature","properties":{"resourceCoords":[5656.0,788.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0992491,42.1116747]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0255/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p255","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0255/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0255/info.json","type":"ImageService2","height":7796,"width":6720},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1225.1,6860.9 1280.5,0.0 5715.7,0.0 5665.0,6881.2 1225.1,6860.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0255/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1256.0,2840.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0987027,42.1108526]}},{"type":"Feature","properties":{"resourceCoords":[5672.0,4860.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.095784,42.1109352]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0256/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p256","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0256/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0256/info.json","type":"ImageService2","height":7796,"width":6712},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"979.0,785.7 5938.5,771.6 5937.2,7796.0 977.5,7796.0 979.0,785.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0256/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5936.0,2784.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0936162,42.1127364]}},{"type":"Feature","properties":{"resourceCoords":[980.0,6780.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0952403,42.1101283]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0257/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p257","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0257/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0257/info.json","type":"ImageService2","height":7796,"width":6712},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1135.1,7077.3 1117.3,796.1 5540.1,761.7 5560.4,6882.0 1135.1,7077.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0257/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1128.0,4840.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0930809,42.1119335]}},{"type":"Feature","properties":{"resourceCoords":[5548.0,2812.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0912335,42.1136147]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0258/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p258","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0258/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0258/info.json","type":"ImageService2","height":7796,"width":6712},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1113.3,757.1 6630.6,767.4 6712.0,7796.0 1104.0,7796.0 1113.3,757.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0258/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1112.0,2784.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0912335,42.1136147]}},{"type":"Feature","properties":{"resourceCoords":[5480.0,2784.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0888545,42.1144917]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0259/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p259","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0259/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0259/info.json","type":"ImageService2","height":7796,"width":6712},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5529.2,908.1 5518.6,7796.0 1082.9,7796.0 1099.3,887.1 5529.2,908.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0259/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1084.0,6988.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1007759,42.1050531]}},{"type":"Feature","properties":{"resourceCoords":[5520.0,6988.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0983902,42.1059314]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0260/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p260","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0260/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0260/info.json","type":"ImageService2","height":7796,"width":6712},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5614.6,891.9 5587.5,6965.1 1179.5,6954.7 1204.0,900.0 5614.6,891.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0260/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5596.0,4944.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.096549,42.1076185]}},{"type":"Feature","properties":{"resourceCoords":[1204.0,900.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1000075,42.1083596]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0261/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p261","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0261/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0261/info.json","type":"ImageService2","height":7796,"width":6712},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5596.0,6956.0 1168.0,6971.8 1157.6,890.5 5593.3,865.5 5596.0,6956.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0261/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1164.0,4948.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.096549,42.1076185]}},{"type":"Feature","properties":{"resourceCoords":[5596.0,6956.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0936211,42.107687]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0262/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p262","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0262/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0262/info.json","type":"ImageService2","height":7796,"width":6712},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5948.5,1918.7 5952.8,7796.0 932.3,7796.0 937.7,1925.2 5948.5,1918.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0262/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[932.0,4964.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0941612,42.1084989]}},{"type":"Feature","properties":{"resourceCoords":[5952.0,6980.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0909143,42.1086835]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0263/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p263","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0263/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0263/info.json","type":"ImageService2","height":7796,"width":6712},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1050.1,7038.3 1068.4,1131.1 5506.4,959.6 5503.2,1962.1 6712.0,1963.3 6712.0,7796.0 6424.5,7796.0 6425.6,6144.0 5489.8,6143.3 5486.9,7045.2 1050.1,7038.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0263/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1056.0,5000.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0914561,42.1094963]}},{"type":"Feature","properties":{"resourceCoords":[5500.0,2968.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0896141,42.1111869]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0264/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p264","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"16"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0264/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0264/info.json","type":"ImageService2","height":7796,"width":6712},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1382.9,7101.7 1396.0,888.0 5784.2,892.0 5786.4,0.0 6712.0,0.0 6712.0,7101.6 1382.9,7101.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0264/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5776.0,4108.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0876672,42.1082639]}},{"type":"Feature","properties":{"resourceCoords":[1396.0,888.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0909143,42.1086835]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0265/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p265","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0265/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0265/info.json","type":"ImageService2","height":7796,"width":6712},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1141.0,2827.3 1140.4,1600.6 5532.0,1592.1 5532.0,7020.0 -0.0,7050.2 -0.0,4123.8 1240.9,2826.5 1141.0,2827.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0265/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5532.0,792.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0983902,42.1059314]}},{"type":"Feature","properties":{"resourceCoords":[5532.0,7020.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.096718,42.1034191]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0266/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p266","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0266/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0266/info.json","type":"ImageService2","height":7796,"width":6712},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5587.4,791.2 5596.0,7048.0 1187.1,7065.7 1180.0,804.0 5587.4,791.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0266/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1180.0,804.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0983902,42.1059314]}},{"type":"Feature","properties":{"resourceCoords":[5596.0,7048.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0943376,42.1042979]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0267/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p267","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0267/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0267/info.json","type":"ImageService2","height":7796,"width":6692},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5636.2,819.3 5640.0,7028.0 1252.2,7043.9 1245.8,830.2 5636.2,819.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0267/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1248.0,2836.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0954696,42.1059977]}},{"type":"Feature","properties":{"resourceCoords":[5640.0,7028.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0919521,42.1051785]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0268/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p268","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"18"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0268/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0268/info.json","type":"ImageService2","height":7796,"width":6712},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"900.4,6991.7 909.9,1562.2 5902.9,1571.9 5898.0,6984.5 900.4,6991.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0268/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[908.0,2772.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0930825,42.1068777]}},{"type":"Feature","properties":{"resourceCoords":[3404.0,6988.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0905954,42.1056794]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0269/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p269","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0269/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0269/info.json","type":"ImageService2","height":7796,"width":6692},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"476.0,6972.0 489.7,920.7 4904.7,917.0 4904.0,6965.6 476.0,6972.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0269/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4900.0,2956.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0914075,42.1043597]}},{"type":"Feature","properties":{"resourceCoords":[476.0,6972.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0927212,42.1018679]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0270/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p270","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0270/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0270/info.json","type":"ImageService2","height":7796,"width":6712},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6267.8,7027.8 -0.0,6994.9 8.2,980.4 6339.3,1017.3 6267.8,7027.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0270/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.09222173507071,42.10557206727431]}},{"type":"Feature","properties":{"resourceCoords":[6712.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.08860020108283,42.10692876228419]}},{"type":"Feature","properties":{"resourceCoords":[6712.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.08649113326588,42.1037859096805]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.09011266725376,42.102429214670614]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0271/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p271","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0271/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0271/info.json","type":"ImageService2","height":7796,"width":6692},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"280.6,817.5 4294.1,773.3 4285.5,0.0 5726.1,0.0 5768.5,6772.6 278.9,6846.4 280.6,817.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0271/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2172.0,796.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0875012,42.1068217]}},{"type":"Feature","properties":{"resourceCoords":[2172.0,6824.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.085913,42.1043849]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0272/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p272","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"6"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0272/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0272/info.json","type":"ImageService2","height":7796,"width":6712},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4216.8,6841.5 -0.0,6843.0 -0.0,-0.0 6712.0,0.0 6712.0,6823.1 6420.0,6824.0 4216.8,6841.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0272/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4212.0,800.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0832931,42.1083707]}},{"type":"Feature","properties":{"resourceCoords":[6420.0,6824.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0804923,42.1063846]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0273/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p273","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"12"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0273/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0273/info.json","type":"ImageService2","height":7796,"width":6688},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5355.5,94.3 5317.1,7779.6 937.4,7796.0 964.3,89.2 5355.5,94.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0273/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[956.0,2124.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0921738,42.1010468]}},{"type":"Feature","properties":{"resourceCoords":[5336.0,4136.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0892507,42.101118]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0274/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p274","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0274/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0274/info.json","type":"ImageService2","height":7796,"width":6712},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6628.2,6148.1 6608.1,7796.0 276.5,7796.0 253.6,134.6 6517.1,126.8 6490.3,6149.9 6628.2,6148.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0274/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.09051009110468,42.10275345353067]}},{"type":"Feature","properties":{"resourceCoords":[6712.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0868667603554,42.1040962270708]}},{"type":"Feature","properties":{"resourceCoords":[6712.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.08477942725558,42.10093431798015]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.08842275800485,42.09959154444002]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0275/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p275","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0275/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0275/info.json","type":"ImageService2","height":7796,"width":6688},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6688.0,825.6 6688.0,6495.4 240.0,6491.9 235.6,871.0 6688.0,825.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0275/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.08729518909851,42.104311336400464]}},{"type":"Feature","properties":{"resourceCoords":[6688.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.08367930866983,42.1056263895267]}},{"type":"Feature","properties":{"resourceCoords":[6688.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.08162768045061,42.10247712002967]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.08524356087929,42.101162066903434]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0276/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p276","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0276/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0276/info.json","type":"ImageService2","height":7796,"width":6712},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"987.2,974.5 6712.0,967.8 6712.0,7796.0 927.9,7796.0 987.2,974.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0276/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6476.0,968.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0804923,42.1063846]}},{"type":"Feature","properties":{"resourceCoords":[6476.0,6864.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0789152,42.1040165]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0277/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p277","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"8"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0277/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0277/info.json","type":"ImageService2","height":7796,"width":6688},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1360.7,7796.0 -0.0,7796.0 -0.0,-0.0 6688.0,0.0 6688.0,7597.3 3922.0,7613.5 3789.1,6862.9 3546.5,7360.9 3122.7,7077.1 2768.3,7077.3 2540.4,7175.9 1831.5,7796.0 1360.7,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0277/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5924.0,5468.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.125004,42.1202103]}},{"type":"Feature","properties":{"resourceCoords":[5924.0,7600.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1238383,42.118492]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0278/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p278","metadata":[{"label":"streets","value":"16"},{"label":"intersections","value":"28"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0278/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0278/info.json","type":"ImageService2","height":7796,"width":6696},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1393.7 555.2,1027.0 2189.0,1049.9 2907.7,419.9 3201.5,309.0 3559.9,354.3 3899.4,604.2 4139.7,113.5 4269.2,854.1 6696.0,843.2 6696.0,6419.5 6696.0,7422.6 5159.5,7440.5 5159.8,7109.5 -0.0,7073.1 -0.0,1393.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0278/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2316.0,5496.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1255701,42.1130733]}},{"type":"Feature","properties":{"resourceCoords":[2316.0,4000.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.126403,42.1142944]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0279/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p279","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0279/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0279/info.json","type":"ImageService2","height":7796,"width":6688},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 5741.9,0.0 5768.6,712.8 6013.6,1815.6 5973.8,2216.0 5673.6,3323.4 5740.0,3338.3 5758.7,4340.5 6688.0,4334.9 6688.0,7796.0 -0.0,7796.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0279/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.12772329901594,42.110651400123444]}},{"type":"Feature","properties":{"resourceCoords":[6688.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.12052415583037,42.113306419313915]}},{"type":"Feature","properties":{"resourceCoords":[6688.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.11638167505147,42.10703682981992]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.12358081823704,42.10438181062945]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0280/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p280","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0280/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0280/info.json","type":"ImageService2","height":7796,"width":6696},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6696.0,5975.4 6038.0,5939.8 5967.0,7132.9 996.9,7053.0 1148.9,0.0 6696.0,0.0 6696.0,5975.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0280/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2488.0,5100.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1226443,42.1210979]}},{"type":"Feature","properties":{"resourceCoords":[4684.0,7324.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1191098,42.1202748]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0281/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p281","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0281/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0281/info.json","type":"ImageService2","height":7796,"width":6688},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1100.4,0.0 6044.6,0.0 5988.4,2080.8 6534.9,2055.2 6688.0,2109.8 6688.0,2210.6 5900.4,2188.6 5812.0,5993.6 5008.3,5980.2 5066.4,5881.5 3228.2,5870.6 3227.6,7796.0 2665.6,7796.0 2658.5,6952.1 806.4,6967.7 790.0,203.1 1100.4,204.2 1100.4,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0281/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.12429099471024,42.11852342967815]}},{"type":"Feature","properties":{"resourceCoords":[6688.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.11717450508353,42.12121588504328]}},{"type":"Feature","properties":{"resourceCoords":[6688.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.11297309062253,42.11501904994919]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.12008958024924,42.11232659458406]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0286/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p286","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0286/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0286/info.json","type":"ImageService2","height":7796,"width":6704},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 6704.0,0.0 6704.0,6318.0 2579.5,6227.4 2566.4,6957.3 2091.9,6957.9 2072.5,7796.0 -0.0,7796.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0286/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.11895661172473,42.09613684057357]}},{"type":"Feature","properties":{"resourceCoords":[6704.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.1117143863018,42.098869133371615]}},{"type":"Feature","properties":{"resourceCoords":[6704.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.10746248785487,42.09257563618421]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.1147047132778,42.089843343386164]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0287/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p287","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0287/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0287/info.json","type":"ImageService2","height":7796,"width":6688},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1826.9,5638.7 1777.0,0.0 6646.8,0.0 6647.4,277.3 5831.6,277.9 5865.8,7795.3 2997.5,7796.0 3008.9,6317.4 2501.6,6324.2 2497.1,5647.4 1826.9,5638.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0287/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.11323596806673,42.09758155955058]}},{"type":"Feature","properties":{"resourceCoords":[6688.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.10603151605372,42.100239964518]}},{"type":"Feature","properties":{"resourceCoords":[6688.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.10188460660154,42.093964459630484]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.10908905861456,42.09130605466306]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0288/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p288","metadata":[{"label":"streets","value":"16"},{"label":"intersections","value":"26"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0288/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0288/info.json","type":"ImageService2","height":7796,"width":6704},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7092.6 -0.0,-0.0 5675.1,0.0 5673.4,952.9 6255.6,948.2 6257.6,4958.9 6307.2,4958.5 5690.9,5603.9 5692.3,7056.8 -0.0,7092.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0288/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3168.0,1984.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1052155,42.105415]}},{"type":"Feature","properties":{"resourceCoords":[6260.0,5948.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0996953,42.1034337]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0289/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p289","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"34"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0289/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0289/info.json","type":"ImageService2","height":7796,"width":6688},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6688.0,7796.0 -0.0,7796.0 -0.0,243.2 6137.4,223.8 6151.6,6332.3 6688.0,6329.5 6688.0,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0289/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4216.0,4004.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1002548,42.098341]}},{"type":"Feature","properties":{"resourceCoords":[2128.0,2260.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1034361,42.0989073]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0290/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p290","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"40"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0290/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0290/info.json","type":"ImageService2","height":7796,"width":6704},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"966.6,310.9 6331.0,287.4 6335.1,7100.7 6704.0,7099.0 6704.0,7796.0 1520.9,7759.6 1518.4,6316.9 990.8,6320.5 966.6,310.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0290/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4156.0,4292.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0945541,42.1001679]}},{"type":"Feature","properties":{"resourceCoords":[992.0,4764.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0977666,42.0985135]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0292/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p292","metadata":[{"label":"streets","value":"17"},{"label":"intersections","value":"21"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0292/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0292/info.json","type":"ImageService2","height":7796,"width":6704},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7265.4 -0.0,-0.0 3961.8,0.0 6704.0,0.0 6704.0,7796.0 229.6,7796.0 -0.0,7265.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0292/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5204.0,4384.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0713887,42.1086097]}},{"type":"Feature","properties":{"resourceCoords":[6460.0,4384.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0700102,42.1091114]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0293/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p293","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"28"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0293/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0293/info.json","type":"ImageService2","height":7796,"width":6688},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6688.0,7796.0 -0.0,7796.0 -0.0,1623.5 834.1,1605.1 840.7,851.8 839.8,753.1 1319.9,741.9 1320.9,0.0 6168.7,0.0 6178.5,682.6 6688.0,669.1 6688.0,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0293/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2996.0,4816.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1084663,42.0889492]}},{"type":"Feature","properties":{"resourceCoords":[2996.0,716.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1105943,42.0922327]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0298__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p298 [1]","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"26"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6704.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0298__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0298/info.json","type":"ImageService2","height":7796,"width":6704},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1049.8 -0.0,7796.0 2388.0,7796.0 3536.0,7796.0 4216.0,7796.0 4210.8,6428.4 5346.0,6431.2 5360.4,7796.0 6704.0,7796.0 6704.0,5306.3 6352.0,5208.2 6704.0,4481.9 6704.0,3636.2 5915.4,2760.7 6704.0,2041.7 6704.0,1522.2 6289.6,1056.6 6704.0,679.4 6704.0,0.0 6406.8,0.0 6408.9,559.7 3525.0,617.7 3528.0,0.0 322.4,0.0 321.5,220.6 390.5,219.4 380.7,1047.6 -0.0,1049.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0298__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1916.0,4412.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0813742,42.0988047]}},{"type":"Feature","properties":{"resourceCoords":[356.0,220.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0853033,42.1015718]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0299/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p299","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0299/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0299/info.json","type":"ImageService2","height":7796,"width":6676},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2279.8,963.6 1980.6,962.9 1973.9,0.0 4453.0,0.0 4461.8,2120.3 4706.5,2672.0 6676.0,2660.2 6676.0,7286.7 5062.0,7263.8 5057.7,7796.0 2302.2,7796.0 2333.2,6295.0 1942.6,6182.6 2138.1,5725.6 2605.4,4957.8 1495.1,3728.6 2286.5,3009.9 2284.8,2489.2 1866.1,2021.6 2282.0,1644.5 2279.8,963.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0299/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.08148476991383,42.10413556501074]}},{"type":"Feature","properties":{"resourceCoords":[6676.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07427786613941,42.106768104799016]}},{"type":"Feature","properties":{"resourceCoords":[6676.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07016350216523,42.10047982346451]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07737040593965,42.09784728367624]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0299A/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p299A","metadata":[{"label":"streets","value":"22"},{"label":"intersections","value":"39"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0299A/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0299A/info.json","type":"ImageService2","height":7796,"width":6704},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1468.6,2212.0 6028.3,0.0 6704.0,0.0 6704.0,7796.0 6036.6,7796.0 1517.5,6512.2 1468.6,2212.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0299A/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[724.0,4620.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0724481,42.1023916]}},{"type":"Feature","properties":{"resourceCoords":[3868.0,4140.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0692682,42.1039783]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0402/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p402","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0402/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0402/info.json","type":"ImageService2","height":7796,"width":6704},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 6704.0,0.0 6704.0,7796.0 -0.0,7796.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0402/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.15119901952426,42.10511965436197]}},{"type":"Feature","properties":{"resourceCoords":[6704.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.1439548176554,42.107788897136736]}},{"type":"Feature","properties":{"resourceCoords":[6704.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.13980044846407,42.10149457188847]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.14704465033293,42.09882532911371]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0403__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p403 [1]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"14"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2569.2"},{"label":"split_canvas_w","value":"6664.0"},{"label":"split_canvas_h","value":"5226.8"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0403__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0403/info.json","type":"ImageService2","height":7796,"width":6664},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4022.9,7316.0 4343.2,7185.2 4659.8,6902.0 4531.4,6902.5 4516.6,2576.2 0.0,2569.2 -0.0,7373.1 4022.9,7316.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0403__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3940.0,7328.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.130566,42.115365]}},{"type":"Feature","properties":{"resourceCoords":[3940.0,4552.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.132031,42.117543]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0404/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p404","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"21"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0404/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0404/info.json","type":"ImageService2","height":7796,"width":6740},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 103.7,0.0 105.7,516.7 4164.9,394.7 4184.6,6213.8 3738.3,6214.8 3733.0,7796.0 -0.0,7796.0 0.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0404/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3880.0,4608.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.128428,42.1119996]}},{"type":"Feature","properties":{"resourceCoords":[2868.0,480.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1317367,42.1149139]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0406/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p406","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0406/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0406/info.json","type":"ImageService2","height":7796,"width":6740},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7793.6 0.0,0.0 6740.0,0.0 6740.0,7796.0 6274.8,7796.0 6264.6,7401.9 975.7,7509.9 -0.0,7793.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0406/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.17226152822661,42.10433362676631]}},{"type":"Feature","properties":{"resourceCoords":[6740.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.16481643175779,42.10689613684352]}},{"type":"Feature","properties":{"resourceCoords":[6740.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.16084953865493,42.100461718680016]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.16829463512376,42.09789920860281]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0407/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p407","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0407/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0407/info.json","type":"ImageService2","height":7796,"width":6664},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 6121.8,0.0 5971.9,5943.4 5897.8,5962.9 5889.5,7796.0 -0.0,7796.0 -0.0,7504.1 0.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0407/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.17791912706834,42.10033292513608]}},{"type":"Feature","properties":{"resourceCoords":[6664.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.17070843912195,42.10298165895849]}},{"type":"Feature","properties":{"resourceCoords":[6664.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.16656155951803,42.09667836914266]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.17377224746441,42.09402963532025]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0408/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p408","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"16"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0408/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0408/info.json","type":"ImageService2","height":7796,"width":6740},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"649.6,4233.7 366.1,4237.7 388.8,284.8 1445.7,0.0 6740.0,0.0 6740.0,7796.0 656.2,7796.0 649.6,4233.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0408/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6096.0,5424.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1593798,42.095951]}},{"type":"Feature","properties":{"resourceCoords":[1440.0,0.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.167368,42.0985027]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0409/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p409","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"15"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0409/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0409/info.json","type":"ImageService2","height":7796,"width":6604},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"483.3,503.5 6337.2,486.0 6320.0,2616.0 6604.0,2612.6 6604.0,7796.0 -0.0,7796.0 -0.0,-0.0 484.5,0.0 483.3,503.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0409/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2700.0,5104.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1688914,42.0911889]}},{"type":"Feature","properties":{"resourceCoords":[6320.0,2616.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.1662775,42.0946405]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0414/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p414","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"15"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0414/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0414/info.json","type":"ImageService2","height":7796,"width":6780},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"449.5,0.0 520.3,2294.5 3935.1,2189.4 4016.6,6262.0 100.8,6461.2 161.1,7796.0 -0.0,7796.0 -0.0,-0.0 449.5,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0414/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5676.0,6768.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0737931,42.0935751]}},{"type":"Feature","properties":{"resourceCoords":[636.0,2924.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.081218,42.0948472]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0415/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p415","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0415/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0415/info.json","type":"ImageService2","height":7796,"width":6604},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,6463.4 -0.0,1851.6 3367.7,1833.9 3356.9,843.0 5458.3,827.2 5495.5,7796.0 2776.1,7796.0 2750.8,6789.3 2570.5,6412.7 -0.0,6463.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0415/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07891907000815,42.09814053654044]}},{"type":"Feature","properties":{"resourceCoords":[6604.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07183618656393,42.100678635682065]}},{"type":"Feature","properties":{"resourceCoords":[6604.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06782655743595,42.094430592753554]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07490944088018,42.09189249361193]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0416/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p416","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0416/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0416/info.json","type":"ImageService2","height":7796,"width":6780},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"676.0,318.6 2284.2,337.9 2283.4,0.0 6780.0,0.0 6780.0,7796.0 -0.0,7796.0 -0.0,476.8 675.0,460.7 676.0,318.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0416/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07308793113545,42.100264542585]}},{"type":"Feature","properties":{"resourceCoords":[6780.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06573410472794,42.102935753193734]}},{"type":"Feature","properties":{"resourceCoords":[6780.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0616235902714,42.096617317091344]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0689774166789,42.09394610648261]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0417/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Erie, Pennsylvania | 1950 | sanborn07660_007 p417","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T11:37:14Z","modified":"2026-09-21T11:37:14Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0417/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0417/info.json","type":"ImageService2","height":7796,"width":6664},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,-0.0 3944.5,0.0 3932.0,496.3 6493.8,529.8 6664.0,909.5 6664.0,7796.0 -0.0,7796.0 0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195002:07660_02_1950-0417/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.08005297400221,42.09177456092544]}},{"type":"Feature","properties":{"resourceCoords":[6664.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07297078618414,42.094478833549154]}},{"type":"Feature","properties":{"resourceCoords":[6664.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06873752053662,42.0882870456173]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07581970835469,42.08558277299358]}}]}}]}