{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03620_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Laurel, Maryland | 1897 | 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":"9"},{"label":"placed","value":"6"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 4, georef-snap 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 39.10870,-76.85824 +/-186m); p1__3 (tier 4, 39.10584,-76.85037 +/-760m); p2__2 (tier 1, 39.09546,-76.84231 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Laurel, Maryland | 1897 | sanborn03620_001 p1 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3812.0"},{"label":"split_canvas_w","value":"3268.4"},{"label":"split_canvas_h","value":"3840.0"}],"created":"2026-09-22T00:03:53Z","modified":"2026-09-22T00:03:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"815.3,1913.0 817.1,953.0 0.0,953.0 -0.0,1913.0 815.3,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[470.1,1448.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.853492,39.105279]}},{"type":"Feature","properties":{"resourceCoords":[470.1,1022.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.853296,39.106083]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Laurel, Maryland | 1897 | sanborn03620_001 p2 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"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":"2026-09-22T00:03:53Z","modified":"2026-09-22T00:03:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,0.0 -0.0,-0.0 0.0,952.1 420.0,957.5 414.6,1387.0 0.0,1383.7 -0.0,1913.0 338.0,1913.0 527.0,1913.0 1613.0,1913.0 1613.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1062.0,351.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.857387,39.109569]}},{"type":"Feature","properties":{"resourceCoords":[1062.0,1829.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.858436,39.107075]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Laurel, Maryland | 1897 | sanborn03620_001 p3 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3287.6"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T00:03:53Z","modified":"2026-09-22T00:03:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"750.0,1913.0 821.4,1913.0 821.9,0.0 0.0,-0.0 0.0,1913.0 750.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[473.9,1093.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.852062,39.107782]}},{"type":"Feature","properties":{"resourceCoords":[473.9,1660.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.850905,39.107269]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0003__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Laurel, Maryland | 1897 | sanborn03620_001 p3 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"3285.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3166.4"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T00:03:53Z","modified":"2026-09-22T00:03:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0003__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1641.1 1598.9,162.0 821.9,165.5 821.5,1633.4 1613.0,1641.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0003__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1254.2,1388.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.8478772,39.1059161]}},{"type":"Feature","properties":{"resourceCoords":[1254.2,286.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.850136,39.106928]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Laurel, Maryland | 1897 | sanborn03620_001 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T00:03:53Z","modified":"2026-09-22T00:03:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 1613.0,0.0 1613.0,1913.0 1425.0,1913.0 1460.6,1773.7 1257.3,1721.7 1260.1,1880.4 142.9,1692.2 184.1,1447.3 0.0,1400.2 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.8485098106693,39.104172889025776]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.84657155424145,39.106736751014466]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.84268054907588,39.10494034179837]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.84461880550373,39.10237647980968]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Laurel, Maryland | 1897 | sanborn03620_001 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T00:03:53Z","modified":"2026-09-22T00:03:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1261.8 237.1,1241.8 164.9,450.1 170.8,450.0 146.6,160.7 -0.0,200.9 -0.0,0.0 1613.0,-0.0 1613.0,1913.0 -0.0,1913.0 -0.0,1261.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844lm:g3844lm_g036201897:03620_1897-0005/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.84314715790337,39.104828921830794]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.84032954391049,39.102633440608585]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.8436613770299,39.10002194568006]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.84647899102279,39.10221742690227]}}]}}]}