{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03599_005.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Ellicott City, Maryland | 1910 | 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":"12"},{"label":"placed","value":"3"},{"label":"unplaced","value":"9"},{"label":"fit sources","value":"georef 2, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"4 sheet(s) cut into 11 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 39.26804,-76.79869 +/-248m); p1__2 (tier 4, 39.26804,-76.79869 +/-248m); p1__3 (tier 4, 39.26804,-76.79869 +/-248m); p2__1 (tier 1, 39.26761,-76.80114 +/-100m); p3__2 (tier 1, 39.27124,-76.79670 +/-100m); p5__1 (tier 1, 39.26800,-76.80020 +/-218m); p5__2 (tier 1, 39.26742,-76.79846 +/-100m); p5__3 (tier 1, 39.26822,-76.79958 +/-100m); p5__4 (tier 1, 39.26757,-76.79849 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844em:g3844em_g035991910:03599_1910-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ellicott City, Maryland | 1910 | sanborn03599_005 p2 [2]","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":"2026-09-21T23:56:57Z","modified":"2026-09-21T23:56:57Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844em:g3844em_g035991910:03599_1910-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844em:g3844em_g035991910:03599_1910-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1240.5 783.0,1240.5 782.1,1913.0 926.0,1913.0 1613.0,1913.0 1613.0,799.2 1469.9,782.8 1486.2,385.5 1613.0,271.5 1613.0,-0.0 -0.0,-0.0 0.0,1240.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844em:g3844em_g035991910:03599_1910-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1229.0,781.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.8003634,39.2684166]}},{"type":"Feature","properties":{"resourceCoords":[1454.0,781.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.8000092,39.2682216]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844em:g3844em_g035991910:03599_1910-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ellicott City, Maryland | 1910 | sanborn03599_005 p3 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"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":"2026-09-21T23:56:57Z","modified":"2026-09-21T23:56:57Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844em:g3844em_g035991910:03599_1910-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844em:g3844em_g035991910:03599_1910-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"310.5,979.1 430.4,1053.6 23.7,1913.0 1613.0,1913.0 1259.7,1071.2 1613.0,865.2 1613.0,0.0 515.9,0.0 469.9,292.6 731.9,416.5 600.3,641.6 503.9,652.3 310.5,979.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844em:g3844em_g035991910:03599_1910-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1394.0,617.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.7975335,39.2685041]}},{"type":"Feature","properties":{"resourceCoords":[334.0,995.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.799964,39.2681886]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844em:g3844em_g035991910:03599_1910-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ellicott City, Maryland | 1910 | sanborn03599_005 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T23:56:57Z","modified":"2026-09-21T23:56:57Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844em:g3844em_g035991910:03599_1910-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844em:g3844em_g035991910:03599_1910-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,561.8 374.5,520.8 602.2,0.0 1613.0,0.0 1613.0,1913.0 -0.0,1913.0 -0.0,561.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844em:g3844em_g035991910:03599_1910-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.79830961230374,39.26880116533724]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.79458455417281,39.26949731299294]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.79352560571502,39.266052855714996]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.79725066384594,39.265356708059294]}}]}}]}