{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn09006_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Covington, Virginia | 1907 | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"21"},{"label":"placed","value":"12"},{"label":"unplaced","value":"9"},{"label":"fit sources","value":"georef-snap 6, georef 5, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"6 sheet(s) cut into 15 panels"},{"label":"unplaced pages","value":"p12__2 (tier 1, 37.77808,-79.98626 +/-166m); p12__3 (tier 1, 37.78116,-79.98617 +/-122m); p1__2 (tier 1, 37.79044,-79.99622 +/-181m); p5__2 (tier 1, 37.78590,-79.99227 +/-100m); p6__2 (tier 1, 37.78269,-79.98989 +/-169m); p6__3 (tier 1, 37.78374,-79.99003 +/-100m); p6__4 (tier 1, 37.78570,-79.99216 +/-100m); p7__1 (tier 3, 37.78507,-79.99669 +/-687m); p7__2 (tier 1, 37.78555,-79.99625 +/-198m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Covington, Virginia | 1907 | sanborn09006_003 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T19:37:53Z","modified":"2026-09-22T19:37:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1546.0,1870.4 1426.3,1913.0 87.1,1913.0 79.8,-0.0 1613.0,-0.0 1613.0,262.6 1542.7,262.3 1546.0,1870.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0010/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.98715470501034,37.78861473798732]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.98540885713909,37.78595561186303]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.98937139956001,37.7843077051796]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.99111724743126,37.786966831303886]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Covington, Virginia | 1907 | sanborn09006_003 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T19:37:53Z","modified":"2026-09-22T19:37:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1515.3,659.9 1524.9,1803.8 1552.1,1833.9 1613.0,1819.3 1613.0,1913.0 51.0,1913.0 38.2,-0.0 1354.7,-0.0 1613.0,139.1 1613.0,308.7 1430.0,308.6 1429.5,387.5 1613.0,508.2 1613.0,660.2 1515.3,659.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0011/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.98606895296952,37.785908142152294]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.9843560015601,37.783271565939486]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.9882847983948,37.78165465161962]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.98999774980422,37.784291227832426]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0012__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Covington, Virginia | 1907 | sanborn09006_003 p12 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3670.8"}],"created":"2026-09-22T19:37:53Z","modified":"2026-09-22T19:37:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0012__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,917.1 607.6,917.6 763.8,917.7 1114.8,637.6 1549.2,638.0 1613.0,535.5 1613.0,0.0 1534.9,0.0 1407.8,183.3 1268.7,184.1 1265.0,87.0 131.6,103.3 101.8,130.6 116.2,191.0 23.4,191.6 0.0,917.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0012__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[598.0,903.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.986329,37.7809688]}},{"type":"Feature","properties":{"resourceCoords":[1265.0,87.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.985815,37.7828735]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Covington, Virginia | 1907 | sanborn09006_003 p1 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3643.2"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4008.8"}],"created":"2026-09-22T19:37:53Z","modified":"2026-09-22T19:37:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1538.0,991.7 189.1,990.0 189.4,1057.5 75.8,1057.8 74.4,911.1 0.0,910.8 -0.0,1913.0 360.0,1913.0 1550.0,1913.0 1538.0,991.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1022.0,1725.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.998266,37.790479]}},{"type":"Feature","properties":{"resourceCoords":[1538.0,991.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.996202,37.790678]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Covington, Virginia | 1907 | sanborn09006_003 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T19:37:53Z","modified":"2026-09-22T19:37:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1435.1,1852.1 111.8,1846.7 111.5,1913.0 -0.0,1913.0 11.8,144.9 385.4,154.2 385.8,-0.0 927.5,-0.0 927.8,167.7 1613.0,184.7 1613.0,1465.6 1434.0,1466.6 1435.1,1852.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.99526225100435,37.79500181808175]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.9927018680177,37.79277162883732]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.99602550124483,37.79035508452667]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.99858588423147,37.792585273771095]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Covington, Virginia | 1907 | sanborn09006_003 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T19:37:53Z","modified":"2026-09-22T19:37:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1466.2 1613.0,1913.0 914.9,1913.0 910.4,1745.7 369.7,1759.1 373.1,1913.0 -0.0,1913.0 -0.0,0.0 1613.0,-0.0 1613.0,851.2 1471.5,1382.0 1535.3,1387.8 1613.0,1466.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.99209184779109,37.79715640231657]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.98959776014586,37.79487265322998]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.9930013132009,37.79251874906066]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.99549540084614,37.79480249814725]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Covington, Virginia | 1907 | sanborn09006_003 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T19:37:53Z","modified":"2026-09-22T19:37:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1383.8,1913.0 -0.0,1913.0 -0.0,1308.4 44.3,1308.8 47.1,-0.0 1613.0,-0.0 1613.0,524.2 1582.2,517.9 1391.9,1130.0 1383.8,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.99560835119539,37.79123050363178]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.99306850194381,37.78904218929229]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.9963295669705,37.78664490580917]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.99886941622208,37.78883322014866]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Covington, Virginia | 1907 | sanborn09006_003 p5 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T19:37:53Z","modified":"2026-09-22T19:37:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1448.9,1000.6 1504.8,1001.0 1604.0,561.2 1335.3,528.2 1613.0,499.5 1613.0,-0.0 284.0,-0.0 286.7,397.0 255.5,390.9 67.7,1009.9 64.9,1800.1 -0.0,1800.5 -0.0,1913.0 293.0,1913.0 572.0,1913.0 990.2,1913.0 990.4,1327.8 1449.2,1326.4 1448.9,1000.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0005__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":[-79.99373132260821,37.789262423787044]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.99123312482982,37.787080503341684]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.99448456222513,37.78472246132888]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.99698276000352,37.78690438177424]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Covington, Virginia | 1907 | sanborn09006_003 p6 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3230.4"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T19:37:53Z","modified":"2026-09-22T19:37:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913.0 483.9,1913.0 537.5,1764.0 682.0,1811.9 684.2,1334.4 686.9,809.9 804.0,424.3 807.6,0.0 747.8,246.6 324.0,115.5 329.0,60.5 -0.0,35.2 -0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.99381685749233,37.785700241868554]}},{"type":"Feature","properties":{"resourceCoords":[807.6,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.9925273106716,37.78679299445308]}},{"type":"Feature","properties":{"resourceCoords":[807.6,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.98925395623841,37.78437990654507]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.99054350305914,37.78328715396054]}},{"type":"Feature","properties":{"resourceCoords":[178.9,1645.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.990716,37.783867]}},{"type":"Feature","properties":{"resourceCoords":[178.9,1645.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.990542,37.783715]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0008__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Covington, Virginia | 1907 | sanborn09006_003 p8 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T19:37:53Z","modified":"2026-09-22T19:37:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0008__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1199.2,1818.5 1197.3,1913.0 1613.0,1913.0 1613.0,0.0 643.8,0.0 654.9,912.1 472.0,1075.3 0.0,1077.2 -0.0,1809.8 1199.2,1818.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0008__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1117.0,262.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.990288,37.793612]}},{"type":"Feature","properties":{"resourceCoords":[1378.0,1771.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.988202,37.791346]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0008__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Covington, Virginia | 1907 | sanborn09006_003 p8 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2619.6"},{"label":"split_canvas_h","value":"4308.8"}],"created":"2026-09-22T19:37:53Z","modified":"2026-09-22T19:37:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0008__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"198.6,1006.0 490.3,999.5 479.4,451.5 649.3,449.9 643.8,0.0 -0.0,-0.0 -0.0,1077.2 197.0,1076.4 198.6,1006.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0008__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.99357451663847,37.7900786399196]}},{"type":"Feature","properties":{"resourceCoords":[654.9,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.9922074749741,37.79062118896923]}},{"type":"Feature","properties":{"resourceCoords":[654.9,1077.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.99108652470579,37.78883230068613]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1077.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.99245356637017,37.7882897516365]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Covington, Virginia | 1907 | sanborn09006_003 p9","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-22T19:37:53Z","modified":"2026-09-22T19:37:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1603.6,1913.0 580.5,1913.0 566.5,1631.0 34.7,1653.2 28.4,1483.5 -0.0,1484.2 -0.0,0.0 1613.0,-0.0 1613.0,36.1 1508.8,37.4 1603.6,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884cm:g3884cm_g090061907:09006_1907-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1079.0,964.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.989528,37.788479]}},{"type":"Feature","properties":{"resourceCoords":[566.0,1631.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.991511,37.788825]}}]}}]}