{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn07660_008.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":"114"},{"label":"placed","value":"97"},{"label":"unplaced","value":"17"},{"label":"fit sources","value":"georef 66, georef-snap 31"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"9 sheet(s) cut into 21 panels"},{"label":"unplaced pages","value":"p0 (tier 1, 42.14333,-80.04563 +/-269m); p304__3 (tier 2, 42.13352,-80.05476 +/-417m); p305 (tier 3, 42.14606,-80.07221 +/-561m); p306 (tier 2, 42.14266,-80.07109 +/-126m); p307 (tier 1, 42.14256,-80.06616 +/-249m); p310 (tier 1, 42.10506,-80.05748 +/-270m); p318 (tier 2, 42.14473,-80.05699 +/-100m); p340__1 (tier 1, 42.14180,-80.05691 +/-230m); p366 (tier 2, 42.11874,-80.06036 +/-100m); p367__3 (tier 2, 42.11900,-80.05730 +/-100m); p371__1 (tier 2, 42.12512,-80.05370 +/-341m); p397__1 (tier 2, 42.14140,-80.03251 +/-1126m); p397__2 (tier 1, 42.14338,-80.03743 +/-633m); p453__2 (tier 1, 42.12333,-80.00484 +/-193m); p454__3 (tier 1, 42.13580,-80.04722 +/-100m); p470__1 (tier 4, 42.13174,-80.04992 +/-3900m); p470__2 (tier 4, 42.13174,-80.04992 +/-3900m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0301/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_008 p301","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0301/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0301/info.json","type":"ImageService2","height":7796,"width":6664},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7582.2 0.0,0.0 1198.7,0.0 1206.0,435.4 5289.4,446.7 5309.1,7576.9 -0.0,7582.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0301/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07705970996092,42.136344881091404]}},{"type":"Feature","properties":{"resourceCoords":[6664.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07340108080602,42.137690016804605]}},{"type":"Feature","properties":{"resourceCoords":[6664.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0712938976935,42.134493655229484]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07495252684839,42.13314851951628]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0302/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_008 p302","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0302/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0302/info.json","type":"ImageService2","height":7796,"width":6652},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1267.3,7605.6 1242.2,1060.8 4062.5,1059.2 4056.4,288.7 6652.0,282.7 6652.0,7613.1 1267.3,7605.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0302/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07484474209961,42.13716507910653]}},{"type":"Feature","properties":{"resourceCoords":[6652.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07120162308726,42.13850644912421]}},{"type":"Feature","properties":{"resourceCoords":[6652.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06909652115392,42.13531793750946]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07273964016628,42.133976567491786]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0303/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_008 p303","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0303/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0303/info.json","type":"ImageService2","height":7796,"width":6664},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4909.7,1362.5 5214.2,1366.9 5212.1,2814.6 6349.8,7394.9 2536.6,7358.9 2594.7,0.0 4654.5,0.0 4909.7,1362.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0303/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1264.0,2520.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0711648,42.1370985]}},{"type":"Feature","properties":{"resourceCoords":[5332.0,528.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.069483,42.1387313]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0304__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_008 p304 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"5"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6652.0"},{"label":"split_canvas_h","value":"3649.6"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0304__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0304/info.json","type":"ImageService2","height":7796,"width":6652},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"107.1,291.9 165.1,3647.6 168.2,3647.7 958.9,3150.7 2805.4,3495.8 5883.6,3434.0 5857.8,2244.6 3919.5,2288.6 3870.2,222.5 107.1,291.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0304__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2052.0,256.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0586437,42.1330804]}},{"type":"Feature","properties":{"resourceCoords":[3948.0,3477.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0567216,42.1320946]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0304__2/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_008 p304 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3647.6"},{"label":"split_canvas_w","value":"6652.0"},{"label":"split_canvas_h","value":"2121.6"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0304__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0304/info.json","type":"ImageService2","height":7796,"width":6652},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6652.0,3718.4 3789.4,3756.4 3792.6,4508.4 -0.0,4512.2 -0.0,5636.3 6652.0,5631.8 6652.0,3718.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0304__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3808.0,5637.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0533741,42.1333101]}},{"type":"Feature","properties":{"resourceCoords":[2036.0,5637.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0544258,42.1329283]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0311/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_008 p311","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0311/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0311/info.json","type":"ImageService2","height":7796,"width":6668},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6112.3,1821.4 6668.0,2727.0 6668.0,7271.4 6448.0,7272.0 6444.0,7796.0 -0.0,7796.0 -0.0,817.5 795.1,1033.0 806.0,0.0 5796.1,0.0 5795.5,1462.6 6100.8,1488.9 6112.3,1821.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0311/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6448.0,7272.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.066065,42.139984]}},{"type":"Feature","properties":{"resourceCoords":[256.0,7272.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.069483,42.1387313]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0312/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_008 p312","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0312/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0312/info.json","type":"ImageService2","height":7796,"width":6684},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"855.4,7196.7 853.4,2755.7 309.8,1870.9 298.4,1545.9 -0.0,1520.3 -0.0,-0.0 6684.0,0.0 6684.0,297.7 6190.0,297.0 6185.1,4337.8 6476.0,4336.0 6476.0,7620.0 2652.1,7620.2 2653.8,7191.3 855.4,7196.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0312/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6476.0,4336.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0635671,42.1423901]}},{"type":"Feature","properties":{"resourceCoords":[6476.0,7620.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0626511,42.1410143]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0313/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_008 p313","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0313/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0313/info.json","type":"ImageService2","height":7796,"width":6668},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,2800.9 -0.0,1035.4 5956.9,1084.6 5861.0,7403.2 1153.1,7401.4 -0.0,2800.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0313/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0696843912872,42.138912746189185]}},{"type":"Feature","properties":{"resourceCoords":[6668.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06607032261034,42.14026508533131]}},{"type":"Feature","properties":{"resourceCoords":[6668.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06395303988467,42.13710967644821]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06756710856152,42.13575733730609]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0314/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_008 p314","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0314/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0314/info.json","type":"ImageService2","height":7796,"width":6684},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7175.5 -0.0,513.6 2540.6,490.0 2544.3,936.5 6541.7,909.4 6600.4,7157.9 2703.0,7163.9 2702.9,7154.7 -0.0,7175.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0314/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06643473983992,42.14010556067502]}},{"type":"Feature","properties":{"resourceCoords":[6684.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06281169134824,42.14141018153952]}},{"type":"Feature","properties":{"resourceCoords":[6684.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06077396976889,42.13825456371581]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06439701826056,42.13694994285131]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0315/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_008 p315","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0315/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0315/info.json","type":"ImageService2","height":7796,"width":6668},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6386.8,7542.9 304.0,7551.7 299.9,4164.9 -0.0,4167.2 -0.0,-0.0 6668.0,0.0 6668.0,330.8 5954.0,324.5 5942.9,1441.0 6432.0,1456.0 6386.8,7542.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0315/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[300.0,5724.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0631464,42.1417564]}},{"type":"Feature","properties":{"resourceCoords":[6432.0,1456.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0609365,42.144718]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0316/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_008 p316","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"16"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0316/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0316/info.json","type":"ImageService2","height":7796,"width":6684},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"292.1,7471.1 284.8,223.7 6370.2,201.4 6413.4,7425.0 292.1,7471.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0316/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[292.0,3856.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.061672,42.1395383]}},{"type":"Feature","properties":{"resourceCoords":[292.0,5708.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0611748,42.138785]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0317/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_008 p317","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0317/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0317/info.json","type":"ImageService2","height":7796,"width":6668},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"506.4,7796.0 490.0,1128.0 -0.0,1117.4 0.0,-0.0 6668.0,0.0 6668.0,7796.0 506.4,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0317/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06150381930556,42.14508231687433]}},{"type":"Feature","properties":{"resourceCoords":[6668.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05783826391449,42.14639010702867]}},{"type":"Feature","properties":{"resourceCoords":[6668.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05577899435177,42.14320798281493]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05944454974284,42.141900192660586]}},{"type":"Feature","properties":{"resourceCoords":[488.0,1128.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0609365,42.144718]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0319/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_008 p319","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0319/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0319/info.json","type":"ImageService2","height":7796,"width":6668},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,244.2 4109.6,232.1 4124.3,7440.6 125.3,7442.6 121.1,7796.0 -0.0,7796.0 -0.0,244.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0319/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1300.0,2720.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0736654,42.1324762]}},{"type":"Feature","properties":{"resourceCoords":[5388.0,7440.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0701472,42.1313766]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0320/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_008 p320","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0320/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0320/info.json","type":"ImageService2","height":7796,"width":6660},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5361.3,7491.6 -0.0,7498.3 -0.0,241.6 5394.7,235.8 5361.3,7491.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0320/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1272.0,2748.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0714292,42.1332946]}},{"type":"Feature","properties":{"resourceCoords":[1272.0,7500.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0701472,42.1313766]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0321/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_008 p321","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0321/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0321/info.json","type":"ImageService2","height":7796,"width":6668},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6668.0,7071.5 5213.7,7083.9 5216.0,7341.4 1132.0,7384.0 1090.3,164.8 6668.0,140.1 6668.0,7071.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0321/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5184.0,3820.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0666425,42.1344491]}},{"type":"Feature","properties":{"resourceCoords":[1132.0,7384.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0679238,42.1321981]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0322/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_008 p322","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0322/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0322/info.json","type":"ImageService2","height":7796,"width":6660},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2611.8,258.9 5248.7,235.0 5262.3,5076.2 4126.3,5090.2 4153.5,7312.9 2627.1,7221.1 2611.8,258.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0322/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06829287061322,42.13583380513641]}},{"type":"Feature","properties":{"resourceCoords":[6660.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0646689076405,42.13714227215055]}},{"type":"Feature","properties":{"resourceCoords":[6660.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06261795336877,42.133974267900214]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0662419163415,42.13266580088607]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0323/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_008 p323","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0323/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0323/info.json","type":"ImageService2","height":7796,"width":6668},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1162.9,259.5 2769.4,161.6 2771.5,0.0 5419.8,0.0 5406.6,7284.4 -0.0,7247.2 -0.0,5050.4 1118.0,5044.0 1162.9,259.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0323/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1120.0,5044.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.064094,42.1348049]}},{"type":"Feature","properties":{"resourceCoords":[5408.0,5044.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0617295,42.1356731]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0324/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_008 p324","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0324/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0324/info.json","type":"ImageService2","height":7796,"width":6660},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5524.0,7460.0 1637.2,7495.4 1604.7,0.0 5468.7,0.0 5473.0,1060.1 5140.6,1062.2 5171.1,2687.8 5492.9,2685.6 5524.0,7460.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0324/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1616.0,2712.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0623686,42.1366369]}},{"type":"Feature","properties":{"resourceCoords":[5524.0,7460.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.058969,42.1354852]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0325/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_008 p325","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"18"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0325/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0325/info.json","type":"ImageService2","height":7796,"width":6668},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6468.7,413.2 6355.8,7275.3 4490.6,7246.9 4493.6,6800.9 262.6,6739.4 321.1,1975.6 -0.0,1971.9 -0.0,349.5 6468.7,413.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0325/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2320.0,6772.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.057844,42.1358949]}},{"type":"Feature","properties":{"resourceCoords":[6416.0,3672.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0564814,42.1379836]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0326/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_008 p326","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"17"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0326/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0326/info.json","type":"ImageService2","height":7796,"width":6660},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"296.8,7796.0 292.0,672.0 4512.5,665.4 4516.8,1110.1 6377.4,1108.5 6386.2,7796.0 296.8,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0326/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4524.0,3140.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.055985,42.135326]}},{"type":"Feature","properties":{"resourceCoords":[292.0,672.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.058969,42.1354852]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0327/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_008 p327","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"14"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0327/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0327/info.json","type":"ImageService2","height":7796,"width":6668},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1154.2,901.2 6668.0,894.6 6668.0,7672.7 1157.0,7667.1 1154.2,901.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0327/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3852.0,2636.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0558909,42.1398423]}},{"type":"Feature","properties":{"resourceCoords":[5360.0,7668.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0536956,42.1381044]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0328/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_008 p328","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0328/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0328/info.json","type":"ImageService2","height":7796,"width":6660},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,773.9 0.0,-0.0 6660.0,0.0 6660.0,420.8 4685.8,428.7 4689.0,763.8 5435.3,756.6 5154.6,2578.7 5202.6,5908.2 4999.3,7748.5 2737.0,7730.7 2728.1,782.4 -0.0,773.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0328/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0564777494731,42.140887931287516]}},{"type":"Feature","properties":{"resourceCoords":[6660.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05294407315276,42.14220423520989]}},{"type":"Feature","properties":{"resourceCoords":[6660.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0508806692234,42.13911540603279]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05441434554375,42.13779910211042]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0329/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_008 p329","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0329/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0329/info.json","type":"ImageService2","height":7796,"width":6656},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5403.9,32.9 5396.2,7784.7 1132.1,7796.0 1143.5,47.4 5403.9,32.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0329/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1132.0,3904.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.054976,42.1357065]}},{"type":"Feature","properties":{"resourceCoords":[5388.0,3904.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0526725,42.1365476]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0330/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_008 p330","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0330/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0330/info.json","type":"ImageService2","height":7796,"width":6660},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4755.0,0.0 4692.5,2168.6 6660.0,2136.3 6660.0,7796.0 1241.4,7715.6 1214.7,0.0 4755.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0330/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1216.0,3844.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0526725,42.1365476]}},{"type":"Feature","properties":{"resourceCoords":[1216.0,1820.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0532083,42.1373636]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0331/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_008 p331","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"6"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0331/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0331/info.json","type":"ImageService2","height":7796,"width":6656},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"364.0,1756.0 606.5,270.1 -0.0,273.4 0.0,0.0 6656.0,0.0 6656.0,7796.0 114.3,7796.0 255.9,6003.3 197.0,5974.2 376.7,4473.1 364.0,1756.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0331/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[364.0,3112.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0526126,42.1402308]}},{"type":"Feature","properties":{"resourceCoords":[364.0,1756.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0530603,42.140885]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0334/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_008 p334","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0334/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0334/info.json","type":"ImageService2","height":7796,"width":6692},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7796.0 -0.0,1190.3 1810.2,1145.7 1775.5,0.0 6692.0,0.0 6692.0,2502.2 6604.8,2503.9 6593.0,2747.3 6624.8,7449.1 1468.9,7494.0 1474.9,7796.0 -0.0,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0334/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.048528024895,42.13965278077939]}},{"type":"Feature","properties":{"resourceCoords":[6692.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04407685850727,42.14122619304277]}},{"type":"Feature","properties":{"resourceCoords":[6692.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04162226852948,42.13735389123186]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04607343491722,42.135780478968485]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0335/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_008 p335","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0335/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0335/info.json","type":"ImageService2","height":7796,"width":6636},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7796.0 -0.0,253.9 5245.6,216.5 5321.2,7599.7 1035.7,7639.5 1038.2,7796.0 -0.0,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0335/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0730996794129,42.13042438952672]}},{"type":"Feature","properties":{"resourceCoords":[6636.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06943741508594,42.131741890510526]}},{"type":"Feature","properties":{"resourceCoords":[6636.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06736500843773,42.128528551368795]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0710272727647,42.12721105038499]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0336/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_008 p336","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0336/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0336/info.json","type":"ImageService2","height":7796,"width":6692},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1335.0,7554.4 1357.3,231.6 6692.0,218.8 6692.0,7545.9 1335.0,7554.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0336/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5352.0,2668.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.067252,42.1311865]}},{"type":"Feature","properties":{"resourceCoords":[5352.0,7548.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.065908,42.1291715]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0337/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_008 p337","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0337/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0337/info.json","type":"ImageService2","height":7796,"width":6636},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5254.1,205.3 5284.0,7587.7 2565.6,7584.8 2543.7,200.9 5254.1,205.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0337/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06863257131823,42.1320378415575]}},{"type":"Feature","properties":{"resourceCoords":[6636.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06498661762343,42.1333841904561]}},{"type":"Feature","properties":{"resourceCoords":[6636.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06286877921349,42.13018524486399]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06651473290829,42.12883889596539]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0338/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_008 p338","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0338/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0338/info.json","type":"ImageService2","height":7796,"width":6692},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1242.0,0.0 4096.4,99.2 5767.3,7727.8 1257.7,7735.7 1242.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0338/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1252.0,5252.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0643401,42.1310005]}},{"type":"Feature","properties":{"resourceCoords":[1252.0,2756.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0650122,42.1320107]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0339/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_008 p339","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0339/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0339/info.json","type":"ImageService2","height":7796,"width":6636},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6142.8,0.0 6214.6,7796.0 6212.8,7796.0 5762.1,7773.2 2357.6,7796.0 548.0,0.0 6142.8,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0339/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06447497341563,42.13354606070154]}},{"type":"Feature","properties":{"resourceCoords":[6636.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06084934915204,42.13485435991549]}},{"type":"Feature","properties":{"resourceCoords":[6636.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0587913150453,42.13167332663037]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06241693930889,42.130365027416424]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0340__2/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_008 p340 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6692.0"},{"label":"split_canvas_h","value":"5434.4"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0340__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0340/info.json","type":"ImageService2","height":7796,"width":6692},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6248.1,219.6 2383.8,248.4 2403.6,5209.9 6254.0,5222.5 6248.1,219.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0340__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6256.0,2723.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0582926,42.1344667]}},{"type":"Feature","properties":{"resourceCoords":[6256.0,5222.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0576206,42.1334488]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0341/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_008 p341","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0341/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0341/info.json","type":"ImageService2","height":7796,"width":6636},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,6090.3 -0.0,1200.1 6113.7,1205.7 6119.5,3066.9 6636.0,3067.1 6636.0,6544.8 227.8,6547.5 229.7,6089.5 -0.0,6090.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0341/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4344.0,4800.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0671731,42.1269035]}},{"type":"Feature","properties":{"resourceCoords":[4344.0,1204.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0681428,42.1283484]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0342/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_008 p342","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0342/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0342/info.json","type":"ImageService2","height":7796,"width":6692},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"504.4,6535.0 515.3,3065.4 -0.0,3063.5 -0.0,1206.6 6692.0,1233.7 6692.0,6038.0 4366.3,6018.9 4611.4,6530.7 504.4,6535.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0342/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2348.0,3072.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0654032,42.1284252]}},{"type":"Feature","properties":{"resourceCoords":[2348.0,1216.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.065908,42.1291715]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0343/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_008 p343","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0343/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0343/info.json","type":"ImageService2","height":7796,"width":6636},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,6535.0 -0.0,-0.0 361.2,0.0 357.7,456.2 6269.6,474.6 6273.3,7520.1 340.0,7496.0 372.9,6537.3 -0.0,6535.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0343/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[340.0,7496.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0670221,42.1225398]}},{"type":"Feature","properties":{"resourceCoords":[4460.0,468.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0667014,42.1262029]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0344/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_008 p344","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0344/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0344/info.json","type":"ImageService2","height":7796,"width":6692},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6368.0,7540.4 6365.9,7796.0 2229.1,7796.0 2231.3,7523.8 -0.0,7514.8 -0.0,486.7 4558.1,488.4 4316.9,0.0 6692.0,0.0 6692.0,7541.7 6368.0,7540.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0344/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2280.0,496.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0644734,42.1270254]}},{"type":"Feature","properties":{"resourceCoords":[6368.0,7540.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0603197,42.1250113]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0345/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_008 p345","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"9"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0345/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0345/info.json","type":"ImageService2","height":7796,"width":6636},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1225.9,214.2 3363.7,215.0 3388.4,314.1 4984.9,326.5 4988.9,6129.4 5418.7,7032.1 5245.7,6972.8 5730.3,7796.0 4018.8,7796.0 3238.4,6547.7 3065.0,6380.2 1286.9,6365.8 1225.9,214.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0345/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5684.0,7136.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0549145,42.126222]}},{"type":"Feature","properties":{"resourceCoords":[1116.0,1136.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0631679,42.1292488]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0346/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_008 p346","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0346/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0346/info.json","type":"ImageService2","height":7796,"width":6692},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6008.7,7152.3 701.0,7115.2 1162.0,7796.0 906.4,7796.0 -0.0,6130.8 -0.0,281.6 325.0,248.5 320.1,721.4 503.6,530.5 737.3,418.9 1684.7,627.7 6692.0,686.2 6692.0,3348.8 6006.5,3345.4 6008.7,7152.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0346/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.059528885285,42.13168989415483]}},{"type":"Feature","properties":{"resourceCoords":[6692.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0522858425727,42.13439822253412]}},{"type":"Feature","properties":{"resourceCoords":[6692.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0480613091209,42.128096265909356]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0553043518332,42.12538793753007]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0347/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_008 p347","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0347/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0347/info.json","type":"ImageService2","height":7796,"width":6672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6672.0,7597.5 -0.0,7577.8 0.0,-0.0 6672.0,0.0 6672.0,7597.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0347/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1244.0,7580.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0484681,42.1285906]}},{"type":"Feature","properties":{"resourceCoords":[5340.0,7580.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0462258,42.1294185]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0348/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_008 p348","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0348/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0348/info.json","type":"ImageService2","height":7796,"width":6692},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7584.1 -0.0,4315.4 2008.3,4266.3 1842.2,0.0 5170.6,0.0 5259.8,3934.6 6692.0,3788.3 6692.0,7379.1 -0.0,7584.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0348/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04765252514922,42.13105361643318]}},{"type":"Feature","properties":{"resourceCoords":[6692.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04398586684181,42.13229572628908]}},{"type":"Feature","properties":{"resourceCoords":[6692.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04204833634725,42.12910555723458]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04571499465466,42.12786344737868]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0349/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_008 p349","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0349/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0349/info.json","type":"ImageService2","height":7796,"width":6672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7796.0 -0.0,-0.0 3600.6,0.0 3623.0,1648.4 6672.0,1604.0 6672.0,7796.0 -0.0,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0349/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3792.0,5736.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0422568,42.1319906]}},{"type":"Feature","properties":{"resourceCoords":[3792.0,7616.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0417654,42.1312279]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0352/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_008 p352","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0352/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0352/info.json","type":"ImageService2","height":7796,"width":6692},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,6010.9 -0.0,737.8 333.9,735.1 315.2,0.0 6692.0,0.0 6692.0,7796.0 6266.8,7796.0 6229.5,5965.8 -0.0,6010.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0352/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.03771854117562,42.13972339482551]}},{"type":"Feature","properties":{"resourceCoords":[6692.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.03034077227308,42.142334443566405]}},{"type":"Feature","properties":{"resourceCoords":[6692.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.02626747190584,42.13591606415062]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.03364524080838,42.133305015409725]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0353/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_008 p353","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0353/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0353/info.json","type":"ImageService2","height":7796,"width":6672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1184.7,6571.8 1214.3,1262.8 1626.8,1268.6 1641.6,0.0 6672.0,0.0 6672.0,7796.0 6504.8,7796.0 6510.8,6603.6 1184.7,6571.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0353/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05292217025232,42.13410624961272]}},{"type":"Feature","properties":{"resourceCoords":[6672.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04928945704522,42.13546764734412]}},{"type":"Feature","properties":{"resourceCoords":[6672.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04714706122172,42.13231592458378]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05077977442882,42.13095452685238]}},{"type":"Feature","properties":{"resourceCoords":[2728.0,1284.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.051084,42.1341438]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0356/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_008 p356","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0356/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0356/info.json","type":"ImageService2","height":7796,"width":6692},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1242.1 6692.0,1287.2 6692.0,7796.0 -0.0,7796.0 -0.0,1242.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0356/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04552763800292,42.13677992531408]}},{"type":"Feature","properties":{"resourceCoords":[6692.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04187010569439,42.13812471585121]}},{"type":"Feature","properties":{"resourceCoords":[6692.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.03976016892646,42.13496094389863]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.043417701235,42.1336161533615]}},{"type":"Feature","properties":{"resourceCoords":[6228.0,1284.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0417762,42.1375104]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0357/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_008 p357","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0357/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0357/info.json","type":"ImageService2","height":7796,"width":6672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,6884.2 0.0,-0.0 1200.7,0.0 1174.1,946.3 5172.0,938.3 5170.2,6879.8 -0.0,6884.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0357/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3420.0,6888.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0641615,42.1205623]}},{"type":"Feature","properties":{"resourceCoords":[1136.0,2920.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0665057,42.1217238]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0358/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_008 p358","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0358/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0358/info.json","type":"ImageService2","height":7796,"width":6692},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1185.7,6939.0 1195.2,910.3 5321.2,906.3 5312.1,4407.1 4008.1,4417.5 3987.9,6939.8 1185.7,6939.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0358/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1192.0,2916.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0642791,42.122543]}},{"type":"Feature","properties":{"resourceCoords":[5316.0,2916.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0620377,42.1233677]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0359/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_008 p359","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0359/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0359/info.json","type":"ImageService2","height":7796,"width":6672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,4508.1 1298.9,4487.3 1281.5,1274.7 5419.9,1219.1 5449.6,6977.7 -0.0,7020.8 -0.0,4508.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0359/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5432.0,5064.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0592204,42.1233478]}},{"type":"Feature","properties":{"resourceCoords":[1280.0,1000.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0625767,42.1241789]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0360/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_008 p360","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0360/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0360/info.json","type":"ImageService2","height":7796,"width":6692},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"300.7,1008.3 4332.1,1075.8 6078.7,3850.4 6692.0,3848.6 6692.0,5004.0 4394.1,5012.6 4373.9,6997.2 284.0,7008.0 300.7,1008.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0360/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[284.0,7008.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0587012,42.1225738]}},{"type":"Feature","properties":{"resourceCoords":[284.0,1008.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0603197,42.1250113]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0361/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_008 p361","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0361/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0361/info.json","type":"ImageService2","height":7796,"width":6672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6672.0,894.5 6672.0,6931.0 -0.0,6932.6 81.8,885.8 6672.0,894.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0361/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1204.0,4916.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0643521,42.1184726]}},{"type":"Feature","properties":{"resourceCoords":[5324.0,2908.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0626563,42.1201068]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0362/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_008 p362","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0362/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0362/info.json","type":"ImageService2","height":7796,"width":6692},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2602.5,7796.0 2579.4,883.7 5350.7,881.1 5344.5,6898.7 2888.9,6904.2 2890.7,7796.0 2602.5,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0362/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1240.0,4900.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0621163,42.1192961]}},{"type":"Feature","properties":{"resourceCoords":[5348.0,2888.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0604183,42.1209305]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0363/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_008 p363","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0363/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0363/info.json","type":"ImageService2","height":7796,"width":6672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5248.0,940.0 5243.5,6926.8 1123.1,6937.7 1126.8,950.5 5248.0,940.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0363/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1124.0,4940.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0598798,42.1201201]}},{"type":"Feature","properties":{"resourceCoords":[5248.0,940.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0587012,42.1225738]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0364/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_008 p364","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0364/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0364/info.json","type":"ImageService2","height":7796,"width":6692},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5284.9,920.3 5302.2,7796.0 1232.0,7796.0 1200.2,949.9 5284.9,920.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0364/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5288.0,2936.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.055923,42.1225753]}},{"type":"Feature","properties":{"resourceCoords":[1228.0,6936.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0570844,42.1201388]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0365/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_008 p365","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0365/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0365/info.json","type":"ImageService2","height":7796,"width":6672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7796.0 47.1,893.8 6665.5,887.2 6672.0,7796.0 -0.0,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0365/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1228.0,5060.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0626825,42.1159641]}},{"type":"Feature","properties":{"resourceCoords":[5312.0,5060.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0604453,42.1167874]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0367__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_008 p367 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6672.0"},{"label":"split_canvas_h","value":"5152.8"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0367__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0367/info.json","type":"ImageService2","height":7796,"width":6672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6398.3,182.0 -0.0,183.3 0.0,2919.6 917.2,3330.8 2103.6,3326.4 2146.4,4033.6 2532.0,4254.4 6385.2,4255.5 6398.3,182.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0367__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2376.0,2128.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0588008,42.1184962]}},{"type":"Feature","properties":{"resourceCoords":[6392.0,2128.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0565453,42.1193268]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0367__2/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_008 p367 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2919.6"},{"label":"split_canvas_w","value":"4144.8"},{"label":"split_canvas_h","value":"4876.4"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0367__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0367/info.json","type":"ImageService2","height":7796,"width":6672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4144.5,7602.3 4140.4,5175.2 4101.6,5152.8 2146.4,4033.6 2103.6,3326.4 917.2,3330.8 0.0,2919.6 -0.0,7549.2 4144.5,7602.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0367__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,2919.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04050803651977,42.14030181162284]}},{"type":"Feature","properties":{"resourceCoords":[4144.8,2919.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.03824985497762,42.14114459080539]}},{"type":"Feature","properties":{"resourceCoords":[4144.8,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.03691322015156,42.13917007765333]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.03917140169371,42.138327298470784]}},{"type":"Feature","properties":{"resourceCoords":[232.0,7552.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0391129,42.1384728]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0368/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_008 p368","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0368/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0368/info.json","type":"ImageService2","height":7796,"width":6708},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1293.1,4346.8 1303.6,1002.9 5405.9,1034.7 5385.7,5173.0 6708.0,5171.2 6708.0,6558.2 5381.2,6556.7 5377.2,7796.0 -0.0,7796.0 -0.0,4346.6 1293.1,4346.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0368/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1300.0,2148.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0565453,42.1193268]}},{"type":"Feature","properties":{"resourceCoords":[5400.0,2148.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0543179,42.1201469]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0369/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_008 p369","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0369/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0369/info.json","type":"ImageService2","height":7796,"width":6652},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1142.9,6939.5 1170.7,924.2 3475.9,912.9 3475.1,0.0 5420.5,0.0 5427.8,1657.8 5474.4,1659.7 5440.0,6932.0 1142.9,6939.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0369/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1148.0,4940.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.055923,42.1225753]}},{"type":"Feature","properties":{"resourceCoords":[5440.0,6932.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0530441,42.1226226]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0370/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_008 p370","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0370/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0370/info.json","type":"ImageService2","height":7796,"width":6708},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5498.4,760.6 5454.6,7796.0 1133.5,7796.0 1173.8,744.6 5498.4,760.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0370/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1152.0,4760.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0543179,42.1201469]}},{"type":"Feature","properties":{"resourceCoords":[5488.0,2748.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0525139,42.1218226]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0371__2/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_008 p371 [2]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6652.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0371__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0371/info.json","type":"ImageService2","height":7796,"width":6652},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2160.6,0.0 2170.6,1525.2 236.7,1536.9 237.5,1781.2 2172.2,1777.0 2207.9,7231.3 6652.0,7796.0 6652.0,188.6 2160.6,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0371__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2940.0,204.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0549145,42.126222]}},{"type":"Feature","properties":{"resourceCoords":[6384.0,1804.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.052592,42.1262554]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0372/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_008 p372","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0372/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0372/info.json","type":"ImageService2","height":7796,"width":6708},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4969.8,180.7 4988.9,7796.0 1409.5,7796.0 1462.3,196.5 4969.8,180.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0372/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5448.0,5024.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.049418,42.1258238]}},{"type":"Feature","properties":{"resourceCoords":[1180.0,1828.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.052592,42.1262554]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0373/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_008 p373","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0373/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0373/info.json","type":"ImageService2","height":7796,"width":6652},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1158.2,0.0 4216.8,0.0 4763.1,500.8 4884.8,612.4 5801.1,1452.4 5392.2,1440.6 5377.2,7643.6 1114.4,7616.8 1158.2,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0373/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05405734936583,42.12297541492624]}},{"type":"Feature","properties":{"resourceCoords":[6652.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05045481682346,42.12432211843299]}},{"type":"Feature","properties":{"resourceCoords":[6652.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04834181777566,42.121168422761485]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05194435031804,42.11982171925473]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0374/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_008 p374","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0374/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0374/info.json","type":"ImageService2","height":7796,"width":6708},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1559.3,1451.4 623.6,618.9 4935.2,550.7 4859.2,7616.1 1146.0,7600.1 1153.3,1440.3 1559.3,1451.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0374/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05176807669046,42.123836826627276]}},{"type":"Feature","properties":{"resourceCoords":[6708.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04810749506434,42.12520096276311]}},{"type":"Feature","properties":{"resourceCoords":[6708.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04598498343346,42.12202324528092]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04964556505958,42.12065910914509]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0375/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_008 p375","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"14"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0375/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0375/info.json","type":"ImageService2","height":7796,"width":6652},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6652.0,7468.6 6652.0,7468.6 6652.0,7796.0 -0.0,7796.0 -0.0,162.3 6652.0,201.1 6652.0,7468.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0375/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[656.0,6592.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0488816,42.1252198]}},{"type":"Feature","properties":{"resourceCoords":[5924.0,3440.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0468789,42.1275488]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0376/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_008 p376","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0376/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0376/info.json","type":"ImageService2","height":7796,"width":6708},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,552.3 6682.0,527.1 6708.0,7121.5 5847.1,7558.4 -0.0,7687.7 -0.0,552.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0376/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04907068666158,42.12484010539883]}},{"type":"Feature","properties":{"resourceCoords":[6708.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04542651769013,42.12616170867422]}},{"type":"Feature","properties":{"resourceCoords":[6708.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0433701539037,42.122998286036285]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04701432287514,42.1216766827609]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0377/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_008 p377","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"21"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0377/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0377/info.json","type":"ImageService2","height":7796,"width":6652},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1638.5,265.5 2359.9,261.5 2305.8,1891.8 4038.1,1891.9 3970.1,7679.8 3347.0,7289.0 1900.0,7280.5 1656.4,7367.8 1638.5,265.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0377/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2688.0,1080.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0457877,42.1287562]}},{"type":"Feature","properties":{"resourceCoords":[620.0,1080.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0480365,42.1279373]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0378/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_008 p378","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"23"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0378/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0378/info.json","type":"ImageService2","height":7796,"width":6708},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1619.4,155.9 4225.1,153.1 4224.9,0.0 5758.5,0.0 5753.8,3809.2 4932.9,3816.3 4933.1,3915.5 5754.1,3911.1 5756.5,6760.0 6708.0,6764.3 6708.0,7796.0 1341.4,7796.0 185.4,7763.3 -0.0,7650.1 -0.0,1902.6 1582.6,1874.5 1619.4,155.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0378/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1080.0,1104.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0431108,42.1297104]}},{"type":"Feature","properties":{"resourceCoords":[3780.0,4776.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0382041,42.1277582]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0379/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_008 p379","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0379/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0379/info.json","type":"ImageService2","height":7796,"width":6652},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"826.4,4831.5 -0.0,4830.1 -0.0,4730.6 826.4,4729.4 837.4,911.7 -0.0,905.7 0.0,-0.0 6652.0,0.0 6652.0,7765.4 5811.3,7763.2 5811.6,7796.0 1781.8,7796.0 1782.0,7697.9 824.2,7686.8 826.4,4831.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0379/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.03992621163229,42.13284998343324]}},{"type":"Feature","properties":{"resourceCoords":[6652.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.03266561288372,42.13546285252501]}},{"type":"Feature","properties":{"resourceCoords":[6652.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0285654039419,42.129107739492035]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.03582600269047,42.126494870400265]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0380/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_008 p380","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0380/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0380/info.json","type":"ImageService2","height":7796,"width":6708},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6708.0,7796.0 1583.6,7796.0 1563.6,16.4 6092.6,0.0 6123.1,1846.2 6552.0,1847.9 6559.1,0.0 6708.0,0.0 6708.0,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0380/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.03437983060392,42.13486644580099]}},{"type":"Feature","properties":{"resourceCoords":[6708.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.02706224756095,42.137482366522626]}},{"type":"Feature","properties":{"resourceCoords":[6708.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.02299139088234,42.131131046760046]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.03030897392532,42.12851512603841]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0381/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_008 p381","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0381/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0381/info.json","type":"ImageService2","height":7796,"width":6652},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7796.0 -0.0,-0.0 6652.0,0.0 6652.0,7796.0 -0.0,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0381/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07284959338143,42.112669576655826]}},{"type":"Feature","properties":{"resourceCoords":[6652.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06914775488944,42.11397657831617]}},{"type":"Feature","properties":{"resourceCoords":[6652.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06709738353133,42.11073541989097]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07079922202333,42.10942841823063]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0381A/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_008 p381A","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0381A/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0381A/info.json","type":"ImageService2","height":7796,"width":6708},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"756.2,6970.6 886.8,145.3 -0.0,133.1 -0.0,-0.0 6708.0,0.0 6708.0,174.8 4306.1,162.7 4234.4,6957.2 756.2,6970.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0381A/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3496.0,6960.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0658146,42.1116858]}},{"type":"Feature","properties":{"resourceCoords":[3496.0,904.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0674816,42.114195]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0381B/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_008 p381B","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0381B/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0381B/info.json","type":"ImageService2","height":7796,"width":6644},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7796.0 -0.0,1506.1 5697.0,1632.7 5690.4,6796.3 4717.1,6788.7 4712.6,7796.0 -0.0,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0381B/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.07101320178907,42.11012416656161]}},{"type":"Feature","properties":{"resourceCoords":[6644.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06732953871465,42.11150032686077]}},{"type":"Feature","properties":{"resourceCoords":[6644.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06516816079788,42.10827106971803]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06885182387231,42.10689490941887]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0381C/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_008 p381C","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0381C/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0381C/info.json","type":"ImageService2","height":7796,"width":6708},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1770.5 530.1,1778.6 549.0,873.9 3953.3,866.3 3868.6,7796.0 -0.0,7796.0 -0.0,1770.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0381C/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3224.0,4756.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0647212,42.11004]}},{"type":"Feature","properties":{"resourceCoords":[3224.0,2820.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0652675,42.1108588]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0381D/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_008 p381D","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0381D/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0381D/info.json","type":"ImageService2","height":7796,"width":6644},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"77.2,0.0 82.6,1629.1 2672.6,1605.8 2673.2,1049.8 3208.2,1049.1 3209.3,1592.7 5388.2,1588.4 5379.9,2405.8 6644.0,2411.7 6644.0,7796.0 -0.0,7796.0 -0.0,-0.0 77.2,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0381D/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2672.0,2100.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.065993,42.1074993]}},{"type":"Feature","properties":{"resourceCoords":[2672.0,1012.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0665359,42.1083172]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0382/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_008 p382","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0382/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0382/info.json","type":"ImageService2","height":7796,"width":6708},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3359.2,0.0 3381.8,1710.6 6708.0,1685.3 6708.0,7796.0 -0.0,7796.0 0.0,-0.0 3359.2,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0382/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06723322741817,42.11466757047273]}},{"type":"Feature","properties":{"resourceCoords":[6708.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0598666059427,42.11732670546947]}},{"type":"Feature","properties":{"resourceCoords":[6708.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05572981692899,42.11093078695371]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06309643840446,42.10827165195697]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0383/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_008 p383","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0383/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0383/info.json","type":"ImageService2","height":7796,"width":6644},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"241.2,7657.0 192.6,1463.1 647.0,1461.3 856.8,1460.4 849.4,769.1 2344.0,759.4 2341.8,351.5 6603.6,329.0 6644.0,7796.0 -0.0,7796.0 -0.0,7660.1 241.2,7657.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0383/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05412322852881,42.11947950269971]}},{"type":"Feature","properties":{"resourceCoords":[6644.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0468948102604,42.12210659585376]}},{"type":"Feature","properties":{"resourceCoords":[6644.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04276818602892,42.115770696981414]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04999660429733,42.11314360382737]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0384/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_008 p384","metadata":[{"label":"streets","value":"17"},{"label":"intersections","value":"30"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0384/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0384/info.json","type":"ImageService2","height":7796,"width":6708},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"902.8,376.9 3514.2,303.8 4174.6,0.0 5626.7,0.0 6708.0,699.0 6708.0,7796.0 -0.0,7796.0 -0.0,7738.4 939.2,7733.6 902.8,376.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0384/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3604.0,2460.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0426411,42.1211827]}},{"type":"Feature","properties":{"resourceCoords":[2028.0,5756.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.042621,42.1178359]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0385/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_008 p385","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0385/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0385/info.json","type":"ImageService2","height":7796,"width":6656},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"778.5,7796.0 888.6,0.0 1033.3,0.0 1032.4,481.0 3681.6,501.8 3678.3,2216.0 6362.0,2236.4 6335.2,7796.0 778.5,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0385/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.06092422267704,42.11708914473773]}},{"type":"Feature","properties":{"resourceCoords":[6656.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05370663427972,42.11979769013687]}},{"type":"Feature","properties":{"resourceCoords":[6656.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04945989338637,42.11348245535259]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0566774817837,42.11077390995345]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0398/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_008 p398","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0398/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0398/info.json","type":"ImageService2","height":7796,"width":6708},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"446.0,7279.9 441.1,7064.1 -0.0,7069.3 -0.0,-0.0 6708.0,0.0 6708.0,4284.7 6312.5,4181.9 6348.8,7643.0 6419.1,7642.3 6421.1,7796.0 6265.9,7796.0 6135.5,7126.6 3842.3,7160.1 3847.9,7541.2 2458.8,7559.1 2461.5,7261.8 446.0,7279.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0398/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1956.0,7260.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0746015,42.1370291]}},{"type":"Feature","properties":{"resourceCoords":[1956.0,6100.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.075226,42.1379913]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0399/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_008 p399","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0399/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0399/info.json","type":"ImageService2","height":7796,"width":6656},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7796.0 0.0,0.0 6656.0,0.0 6656.0,7796.0 -0.0,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0399/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.05036682744421,42.14920933153507]}},{"type":"Feature","properties":{"resourceCoords":[6656.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04311659055922,42.15179426325164]}},{"type":"Feature","properties":{"resourceCoords":[6656.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.03906161262415,42.145453671219244]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.04631184950914,42.142868739502674]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0399A/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_008 p399A","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0399A/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0399A/info.json","type":"ImageService2","height":7796,"width":6708},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,3043.5 -0.0,592.0 6207.7,653.1 6217.7,0.0 6708.0,0.0 6708.0,6908.2 4695.9,6882.6 4684.3,5262.0 2592.9,5279.3 2609.7,7619.4 4363.8,7627.4 4360.7,7796.0 509.3,7796.0 509.0,7609.8 274.9,7608.7 309.2,4730.0 319.1,4581.0 372.3,4580.7 400.9,3048.8 -0.0,3043.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0399A/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[336.0,536.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0454903,42.1432206]}},{"type":"Feature","properties":{"resourceCoords":[2740.0,536.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0428839,42.1441734]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0399B/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_008 p399B","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0399B/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0399B/info.json","type":"ImageService2","height":7796,"width":6656},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6283.0,6462.4 2667.0,6354.1 2662.5,6504.2 -0.0,6414.2 -0.0,-0.0 3524.3,-0.0 3522.1,580.3 6401.2,591.4 6283.0,6462.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0399B/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.02175832516937,42.14221319054066]}},{"type":"Feature","properties":{"resourceCoords":[6656.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01809893201906,42.136917226220596]}},{"type":"Feature","properties":{"resourceCoords":[6656.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.02640547627756,42.13371648345714]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.03006486942787,42.139012447777205]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0399C/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_008 p399C","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0399C/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0399C/info.json","type":"ImageService2","height":7796,"width":6708},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4524.0,6435.0 363.0,6391.5 366.9,637.2 6659.7,487.7 6643.4,-0.0 6708.0,-0.0 6708.0,7796.0 4509.8,7796.0 4524.0,6435.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0399C/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01836748350347,42.13743489875033]}},{"type":"Feature","properties":{"resourceCoords":[6708.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0147467223597,42.13193412631259]}},{"type":"Feature","properties":{"resourceCoords":[6708.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.02330696303932,42.128791482705246]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.02692772418308,42.13429225514298]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0453__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_008 p453 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3531.6"},{"label":"split_canvas_w","value":"6676.0"},{"label":"split_canvas_h","value":"4264.4"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0453__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0453/info.json","type":"ImageService2","height":7796,"width":6676},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1300.0,7796.0 2452.0,7796.0 6676.0,7796.0 6676.0,4041.3 444.8,3748.5 138.2,3747.5 -0.0,3739.9 -0.0,7796.0 1300.0,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0453__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2684.0,5745.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0144593,42.1331671]}},{"type":"Feature","properties":{"resourceCoords":[2684.0,3859.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0150049,42.1339201]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0454__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_008 p454 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6740.0"},{"label":"split_canvas_h","value":"2253.6"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0454__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0454/info.json","type":"ImageService2","height":7796,"width":6740},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,0.0 0.0,2253.6 4602.8,2251.6 6740.0,2250.8 6740.0,0.0 -0.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0454__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01976861800846,42.14285712828969]}},{"type":"Feature","properties":{"resourceCoords":[6740.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01604869452774,42.14415594089732]}},{"type":"Feature","properties":{"resourceCoords":[6740.0,2253.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0154642357534,42.14323306437359]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2253.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01918415923411,42.14193425176596]}},{"type":"Feature","properties":{"resourceCoords":[3488.0,1252.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0175186,42.1430162]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0454__2/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_008 p454 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2251.6"},{"label":"split_canvas_w","value":"6740.0"},{"label":"split_canvas_h","value":"5544.4"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0454__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0454/info.json","type":"ImageService2","height":7796,"width":6740},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6740.0,7482.3 6740.0,3765.2 4607.2,3768.8 4602.8,2251.6 0.0,2253.6 -0.0,5904.7 392.5,5932.7 383.0,7593.9 6740.0,7482.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0454__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2244.0,7580.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0126204,42.141501]}},{"type":"Feature","properties":{"resourceCoords":[2244.0,2539.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0142587,42.1434254]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0455/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_008 p455","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0455/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0455/info.json","type":"ImageService2","height":7796,"width":6676},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7701.7 -0.0,-0.0 6676.0,0.0 6676.0,7796.0 5998.4,7796.0 5986.3,7620.4 -0.0,7701.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0455/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.02044025281786,42.139172506630196]}},{"type":"Feature","properties":{"resourceCoords":[6676.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0168261031785,42.1405520304239]}},{"type":"Feature","properties":{"resourceCoords":[6676.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01466883643788,42.13740034776226]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01828298607724,42.13602082396856]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0456/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_008 p456","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"11"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0456/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0456/info.json","type":"ImageService2","height":7796,"width":6740},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5968.7,0.0 6527.7,7202.4 740.9,7235.2 897.5,102.1 5968.7,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0456/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2248.0,1928.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0155647,42.140109]}},{"type":"Feature","properties":{"resourceCoords":[1544.0,3756.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0154161,42.1392236]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0457/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_008 p457","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0457/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0457/info.json","type":"ImageService2","height":7796,"width":6676},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6462.3,7398.6 -0.0,7139.8 -0.0,500.3 6068.8,492.3 6462.3,7398.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0457/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01847519271766,42.1362493317196]}},{"type":"Feature","properties":{"resourceCoords":[6676.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01490466881565,42.1376530771466]}},{"type":"Feature","properties":{"resourceCoords":[6676.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.012709626147,42.134539294189274]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01628015004901,42.13313554876227]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0458/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_008 p458","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0458/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0458/info.json","type":"ImageService2","height":7796,"width":6740},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"562.8,7297.1 351.1,598.4 1028.3,623.7 932.2,430.4 1035.5,431.7 1051.6,0.0 6740.0,0.0 6740.0,7796.0 788.0,7796.0 794.8,7306.7 562.8,7297.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0458/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01539946982676,42.137419622535816]}},{"type":"Feature","properties":{"resourceCoords":[6740.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01182345919365,42.13891301793836]}},{"type":"Feature","properties":{"resourceCoords":[6740.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.00951035879807,42.135824123999974]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01308636943118,42.13433072859743]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0459/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_008 p459","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0459/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0459/info.json","type":"ImageService2","height":7796,"width":6676},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,5808.0 223.2,5804.5 199.9,161.2 6676.0,80.7 6676.0,7796.0 -0.0,7796.0 -0.0,5808.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0459/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3900.0,4272.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0103351,42.1403844]}},{"type":"Feature","properties":{"resourceCoords":[3900.0,2416.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0109427,42.1410898]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0471/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_008 p471","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0471/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0471/info.json","type":"ImageService2","height":7796,"width":6676},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6041.9,2128.4 6676.0,1855.4 6676.0,3419.0 6095.0,3454.7 6032.4,4722.9 5433.4,4293.9 5432.2,4431.9 5890.0,4753.2 6118.0,4779.8 6676.0,5176.3 6676.0,5312.0 6055.0,4871.5 6024.5,7427.6 2349.9,7388.2 2347.8,7796.0 -0.0,7796.0 -0.0,-0.0 6676.0,0.0 6676.0,64.0 6047.2,273.8 6041.9,2128.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0471/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.02551716685771,42.154222371314916]}},{"type":"Feature","properties":{"resourceCoords":[6676.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01827404236683,42.1567811487931]}},{"type":"Feature","properties":{"resourceCoords":[6676.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01427180277435,42.150466250065975]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.02151492726523,42.14790747258779]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0472/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_008 p472","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"18"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0472/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0472/info.json","type":"ImageService2","height":7796,"width":6740},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1235.7,5150.2 646.0,4741.8 455.2,4741.2 -0.0,4428.6 -0.0,4291.6 595.7,4709.1 646.6,3449.1 1220.5,3405.6 1207.1,1853.2 582.7,2133.1 572.0,291.8 1191.6,74.8 1191.1,11.2 6740.0,0.0 6740.0,7796.0 3826.3,7796.0 3824.7,7012.0 3445.7,6747.8 613.1,6768.9 619.3,4856.3 1236.8,5285.0 1235.7,5150.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0472/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1548.0,5432.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0151286,42.1524749]}},{"type":"Feature","properties":{"resourceCoords":[572.0,292.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0188157,42.1563184]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0473__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_008 p473 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5250.0"},{"label":"split_canvas_w","value":"2011.6"},{"label":"split_canvas_h","value":"2546.0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0473__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0473/info.json","type":"ImageService2","height":7796,"width":6676},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"768.0,7796.0 1834.4,7796.0 1837.6,5457.8 0.0,5457.9 0.0,7174.0 -0.0,7796.0 768.0,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0473__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[319.9,5457.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0190059,42.1491965]}},{"type":"Feature","properties":{"resourceCoords":[1839.6,5457.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0182081,42.1494707]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0473__2/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_008 p473 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6676.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0473__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0473/info.json","type":"ImageService2","height":7796,"width":6676},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,5250.0 2006.4,5257.6 2011.6,7796.0 2053.8,7796.0 2072.3,6015.6 2887.0,6024.0 3055.2,6409.1 6312.0,6400.0 6315.7,1139.9 839.5,1171.5 850.5,3581.5 666.4,3389.6 -0.0,3393.7 0.0,5250.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0473__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2664.0,1160.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0171954,42.149819]}},{"type":"Feature","properties":{"resourceCoords":[6312.0,6400.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0138339,42.1483434]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0474/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_008 p474","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0474/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0474/info.json","type":"ImageService2","height":7796,"width":6760},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6008.1,0.0 6760.0,526.6 6760.0,6113.5 4073.0,6094.3 4071.3,6498.1 346.2,6471.6 380.5,0.0 6008.1,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0474/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01569392469698,42.150954858264946]}},{"type":"Feature","properties":{"resourceCoords":[6760.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.01194712604547,42.152255839570365]}},{"type":"Feature","properties":{"resourceCoords":[6760.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.0099375925425,42.149029675656685]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7796.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-80.013684391194,42.147728694351265]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0475/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_008 p475","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0475/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0475/info.json","type":"ImageService2","height":7796,"width":6676},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7796.0 0.0,-0.0 822.5,0.0 996.3,387.0 6170.4,319.0 6202.9,2858.1 5777.1,2863.1 5840.2,7796.0 -0.0,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0475/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4308.0,2880.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0131968,42.1473061]}},{"type":"Feature","properties":{"resourceCoords":[2444.0,368.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0148471,42.1479981]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0476/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_008 p476","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"}],"created":"2026-09-21T12:08:48Z","modified":"2026-09-21T12:08:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0476/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0476/info.json","type":"ImageService2","height":7796,"width":6760},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6760.0,7796.0 -0.0,7796.0 -0.0,2907.4 420.0,2908.0 420.0,404.0 2268.9,404.0 2269.8,0.0 6760.0,0.0 6760.0,7796.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd382m:g3824m:g3824em:g3824em_g07660195003:07660_03_1950-0476/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[420.0,2908.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0121524,42.1476605]}},{"type":"Feature","properties":{"resourceCoords":[420.0,404.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.0127947,42.1486975]}}]}}]}