{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn03665_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Westminster, Maryland | 1892 | 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":"11"},{"label":"placed","value":"9"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef-snap 5, georef 3, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"1 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p3__2 (tier 1, 39.58082,-77.00052 +/-101m); p3__3 (tier 3, 39.57596,-76.99449 +/-757m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Westminster, Maryland | 1892 | sanborn03665_002 p1","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T16:47:21Z","modified":"2026-09-23T16:47:21Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0001/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 -0.0,7652.0 -0.0,-0.0 6452.0,0.0 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0001/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99938032420225,39.581572045474076]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.9975104309055,39.58156018951472]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99752854706534,39.579838921146134]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.9993984403621,39.57985077710549]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Westminster, Maryland | 1892 | sanborn03665_002 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T16:47:21Z","modified":"2026-09-23T16:47:21Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0002/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 -0.0,-0.0 5421.8,0.0 5413.0,292.6 5334.6,290.5 5327.5,1482.7 6004.2,1505.2 5928.2,6634.5 5231.2,6666.9 5208.8,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-77.00149156531477,39.5740116332848]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99851023920056,39.575905660118906]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99561644717603,39.573160994123]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99859777329024,39.57126696728889]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Westminster, Maryland | 1892 | sanborn03665_002 p3 [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":"4732.4"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T16:47:21Z","modified":"2026-09-23T16:47:21Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0003__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,5387.0 3284.3,5875.6 2794.3,5355.8 3736.5,4467.5 3504.0,4295.2 3982.4,3625.6 3972.4,3123.2 3947.2,1850.4 4732.4,1096.4 4725.2,0.0 0.0,-0.0 -0.0,5387.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0003__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":[-77.00292600465683,39.5806426952652]}},{"type":"Feature","properties":{"resourceCoords":[4732.4,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-77.00093473779371,39.58224516895111]}},{"type":"Feature","properties":{"resourceCoords":[4732.4,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99757464545104,39.57976186653382]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99956591231415,39.57815939284791]}},{"type":"Feature","properties":{"resourceCoords":[1556.1,1480.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.0016209,39.580689]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0003__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Westminster, Maryland | 1892 | sanborn03665_002 p3 [4]","metadata":[{"label":"streets","value":"1"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"4664.0"},{"label":"split_canvas_y","value":"4846.0"},{"label":"split_canvas_w","value":"1788.0"},{"label":"split_canvas_h","value":"2806.0"}],"created":"2026-09-23T16:47:21Z","modified":"2026-09-23T16:47:21Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0003__4/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 6452.0,4852.0 5029.5,4847.2 4921.4,7652.0 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0003__4/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[4664.0,4846.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99061877273049,39.571866855052235]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,4846.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.98890640980089,39.57290096428362]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.9868005663385,39.57082702840158]}},{"type":"Feature","properties":{"resourceCoords":[4664.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.9885129292681,39.5697929191702]}},{"type":"Feature","properties":{"resourceCoords":[4960.0,6740.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.9891209,39.570842]}},{"type":"Feature","properties":{"resourceCoords":[4960.0,6740.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.9889134,39.5706377]}},{"type":"Feature","properties":{"resourceCoords":[4960.0,6740.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.9893708,39.5710881]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Westminster, Maryland | 1892 | sanborn03665_002 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T16:47:21Z","modified":"2026-09-23T16:47:21Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0004/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0004/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5413.6,0.0 6452.0,812.6 6452.0,7652.0 6340.7,7652.0 6319.4,6761.2 4694.2,6800.3 4729.6,7652.0 3967.8,7652.0 3146.5,7246.2 -0.0,7258.6 -0.0,-0.0 5413.6,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-77.00162106981125,39.578261016000475]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99845432453881,39.58015242876439]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99556435232685,39.5772372379642]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99873109759929,39.57534582520028]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Westminster, Maryland | 1892 | sanborn03665_002 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T16:47:21Z","modified":"2026-09-23T16:47:21Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0005/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0005/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1504.3 -0.0,346.4 3245.1,411.7 4216.2,843.8 4829.6,858.6 4814.5,0.0 6452.0,0.0 6452.0,7652.0 604.8,7652.0 657.4,1522.3 -0.0,1504.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0005/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99905056975308,39.57560199521027]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99596587363209,39.57753770958999]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99300831945963,39.57469794616915]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99609301558063,39.57276223178943]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Westminster, Maryland | 1892 | sanborn03665_002 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T16:47:21Z","modified":"2026-09-23T16:47:21Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0006/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0006/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"681.8,240.4 692.3,1397.7 6452.0,1301.7 6452.0,7652.0 4859.2,7652.0 4861.8,6903.3 420.8,6929.0 415.9,7652.0 -0.0,7652.0 -0.0,287.6 681.8,240.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0006/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99666104711432,39.57326322325046]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99356136978511,39.57514291596015]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99068951363456,39.57228925833282]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99378919096377,39.57040956562313]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Westminster, Maryland | 1892 | sanborn03665_002 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T16:47:21Z","modified":"2026-09-23T16:47:21Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0007/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0007/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,117.5 4507.2,69.2 4509.8,829.1 6126.4,818.1 6120.8,0.0 6452.0,0.0 6255.3,7268.5 6452.0,7267.6 6452.0,7652.0 6284.4,7652.0 6251.8,7396.6 551.1,7534.0 551.0,7532.5 458.9,7652.0 -0.0,7652.0 -0.0,117.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99390453701261,39.57084830646116]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99083446999641,39.57268409825197]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.98802978242689,39.569857604727616]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.99109984944309,39.568021812936806]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Westminster, Maryland | 1892 | sanborn03665_002 p8","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"}],"created":"2026-09-23T16:47:21Z","modified":"2026-09-23T16:47:21Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0008/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0008/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 -0.0,-0.0 78.4,172.5 543.8,190.8 547.4,71.6 6452.0,168.8 6452.0,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844wm:g3844wm_g036651892:03665_1892-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3144.0,6404.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.9873283,39.5667427]}},{"type":"Feature","properties":{"resourceCoords":[468.0,2472.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.9900449,39.5673315]}}]}}]}