{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03660_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Towson, Maryland | 1904 | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"4"},{"label":"placed","value":"2"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef-snap 1, georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 2 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 39.40334,-76.60860 +/-251m); p1__2 (tier 1, 39.40188,-76.60424 +/-130m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844tm:g3844tm_g036601904:03660_1904-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Towson, Maryland | 1904 | sanborn03660_004 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T03:37:01Z","modified":"2026-09-23T03:37:01Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844tm:g3844tm_g036601904:03660_1904-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844tm:g3844tm_g036601904:03660_1904-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 1520.4,0.0 1505.7,143.1 1458.7,205.9 1526.3,207.1 1574.9,279.4 1503.9,388.7 1553.2,716.3 1444.7,1896.5 -0.0,1913.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844tm:g3844tm_g036601904:03660_1904-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.60573591308528,39.40282229971677]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.60184371017372,39.40243279721906]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.60243733564742,39.398840647775316]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.60632953855898,39.39923015027302]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844tm:g3844tm_g036601904:03660_1904-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Towson, Maryland | 1904 | sanborn03660_004 p3","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"14"}],"created":"2026-09-23T03:37:01Z","modified":"2026-09-23T03:37:01Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844tm:g3844tm_g036601904:03660_1904-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844tm:g3844tm_g036601904:03660_1904-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"100.0,390.5 165.0,276.4 112.3,206.3 44.5,208.7 88.0,142.9 94.7,0.0 1613.0,0.0 1613.0,1913.0 125.7,1913.0 167.8,717.9 100.0,390.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844tm:g3844tm_g036601904:03660_1904-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[670.0,1621.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6014089,39.399265]}},{"type":"Feature","properties":{"resourceCoords":[670.0,167.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6007674,39.4019461]}}]}}]}