{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn03573_045.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Baltimore, Maryland | 1953 | 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":"73"},{"label":"placed","value":"60"},{"label":"unplaced","value":"13"},{"label":"fit sources","value":"georef-snap 29, georef 29, snap:0 1, georef-street 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"7 sheet(s) cut into 16 panels"},{"label":"unplaced pages","value":"p0 (tier 4, 39.30628,-76.66626 +/-3397m); p811__2 (tier 1, 39.31248,-76.64829 +/-100m); p831__2 (tier 2, 39.31042,-76.65733 +/-215m); p846__1 (tier 1, 39.29235,-76.69555 +/-199m); p847__1 (tier 1, 39.29536,-76.68794 +/-291m); p847__2 (tier 2, 39.29811,-76.68574 +/-291m); p847__3 (tier 2, 39.29811,-76.68574 +/-291m); p847__4 (tier 2, 39.29811,-76.68574 +/-291m); p866 (tier 2, 39.29666,-76.70649 +/-100m); p869 (tier 2, 39.29574,-76.69602 +/-116m); p890__1 (tier 1, 39.31641,-76.70362 +/-269m); p890__2 (tier 3, 39.31500,-76.70751 +/-457m); p891 (tier 1, 39.29722,-76.66449 +/-239m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0801/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p801","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0801/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0801/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"582.3,1644.3 99.7,922.5 132.1,164.5 4352.0,113.4 4352.0,5400.0 -0.0,5400.0 -0.0,5321.4 602.9,5314.7 582.3,1644.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0801/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66739925837717,39.29806646583563]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66353126555323,39.29817713728979]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66335506295334,39.29443673158984]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66722305577728,39.29432606013568]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0802/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p802","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0802/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0802/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1504.1,146.2 3662.6,134.2 3667.7,5319.5 4352.0,5319.3 4352.0,5400.0 1470.1,5371.8 1504.1,146.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0802/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66488533135384,39.29815543367497]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66097327617007,39.29828727394667]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66076336999161,39.29450426310438]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66467542517539,39.29437242283268]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0803/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p803","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"15"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0803/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0803/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"927.2,157.1 3154.4,56.7 3154.6,3302.0 3789.9,3329.5 3797.5,4233.6 3154.3,4237.1 3152.0,5400.0 942.6,5369.7 927.2,157.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0803/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[928.0,1444.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6615396,39.2972755]}},{"type":"Feature","properties":{"resourceCoords":[928.0,2756.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6614912,39.2963611]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0804/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p804","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0804/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0804/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"72.1,5400.0 74.7,4210.2 714.2,4207.2 730.1,3395.0 617.9,3280.1 75.1,3287.1 75.4,83.5 3460.4,61.5 3461.2,640.5 3461.5,831.0 4352.0,822.5 4352.0,5400.0 72.1,5400.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0804/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.6596566141046,39.29836268538519]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.65571402595427,39.29848987633835]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.65551152156793,39.29467734918238]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.65945410971827,39.29455015822922]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0805/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p805","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0805/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0805/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"695.3,3793.5 422.4,3470.8 -0.0,3471.5 -0.0,1287.7 553.0,1284.8 530.8,303.1 4352.0,224.9 4352.0,5060.9 464.5,5145.5 446.9,5400.0 -0.0,5400.0 -0.0,4992.3 467.9,4981.9 695.3,3793.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0805/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66778281246714,39.30147465599391]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66395556463746,39.3015553431752]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66382709445548,39.29785451828243]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66765434228516,39.29777383110113]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0806/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p806","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"17"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0806/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0806/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3478.7,294.5 3457.1,5100.6 929.3,5099.5 1038.5,286.6 3478.7,294.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0806/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2012.0,5100.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6628726,39.2981235]}},{"type":"Feature","properties":{"resourceCoords":[1492.0,288.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.663547,39.3014157]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0807/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p807","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"20"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0807/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0807/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"657.0,5094.2 638.9,4043.4 -0.0,4355.6 -0.0,1987.6 867.3,1978.4 839.3,425.8 4352.0,372.5 4352.0,1913.1 3150.6,1939.3 3171.7,3502.4 3842.1,3492.7 3852.0,5040.0 657.0,5094.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0807/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1936.0,1964.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6662474,39.3034821]}},{"type":"Feature","properties":{"resourceCoords":[3852.0,5040.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6644375,39.3013838]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0808/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p808","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0808/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0808/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3614.5,3567.6 3619.8,5048.8 660.1,5053.6 671.1,3504.8 -0.0,3506.0 -0.0,1940.7 1202.8,1930.7 1223.7,388.7 1652.0,388.0 1649.3,0.0 4352.0,0.0 4352.0,3495.7 3614.5,3567.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0808/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1652.0,388.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6637342,39.3046555]}},{"type":"Feature","properties":{"resourceCoords":[1652.0,5052.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.663547,39.3014157]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0809/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p809","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"19"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0809/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0809/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2022.8,398.5 3911.1,452.3 3915.0,1174.9 3479.1,1173.9 3463.9,2364.0 3787.0,2211.2 3792.0,3225.5 3520.2,3222.4 3498.2,4304.3 3709.4,4306.5 3840.8,4468.5 3723.0,5054.8 2760.9,5060.3 2746.2,5400.0 443.0,5400.0 314.8,5181.3 -0.0,5179.1 6.6,481.6 2022.3,462.5 2022.8,398.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0809/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1232.0,400.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6720655,39.304358]}},{"type":"Feature","properties":{"resourceCoords":[2928.0,1748.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6689268,39.3025941]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0810/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p810","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0810/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0810/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1256.2,451.2 3209.6,457.2 4352.0,5063.9 4352.0,5063.9 4352.0,5400.0 -0.0,5400.0 -0.0,5064.1 1256.2,451.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0810/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1252.0,1992.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6500354,39.3118698]}},{"type":"Feature","properties":{"resourceCoords":[3220.0,1992.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6482802,39.3119329]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0811__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p811 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4352.0"},{"label":"split_canvas_h","value":"5400.0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0811__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0811/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,4201.5 -0.0,5400.0 4352.0,5400.0 4352.0,4191.8 4114.5,4194.3 4112.9,4356.8 4110.3,4612.0 2702.1,4625.9 2698.1,4218.7 3239.9,4207.4 3241.5,2728.5 3381.9,2661.7 3381.4,1634.0 3241.0,1636.4 3239.2,1208.8 1420.0,1216.0 1420.0,4244.0 -0.0,4201.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0811__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1420.0,4244.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6481462,39.3097966]}},{"type":"Feature","properties":{"resourceCoords":[1420.0,1216.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6482802,39.3119329]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0812__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p812 [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":"4352.0"},{"label":"split_canvas_h","value":"5400.0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0812__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0812/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,4992.4 -0.0,5400.0 1409.5,5400.0 1456.0,4981.6 1655.6,4981.8 1651.5,5400.0 4352.0,5400.0 4352.0,4981.9 2961.7,4980.0 3451.2,3194.3 2416.4,1941.8 2391.6,1942.4 2391.6,1911.8 812.1,0.0 595.6,0.0 568.8,2413.3 706.3,2412.4 699.7,3440.9 558.5,3506.3 542.4,4986.5 -0.0,4992.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0812__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2960.0,4980.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6442856,39.3099888]}},{"type":"Feature","properties":{"resourceCoords":[4908.0,4980.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6425125,39.3100689]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0812__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p812 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"2391.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1960.4"},{"label":"split_canvas_h","value":"1942.4"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0812__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0812/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4352.0,-0.0 4213.9,-0.0 3521.6,691.3 2869.4,21.5 2543.7,1871.9 3947.2,1742.6 3962.5,1907.5 4352.0,1899.2 4352.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0812__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[2391.6,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.64436382041971,39.31129349163811]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.64260095219647,39.31124599438736]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,1942.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.64266171763802,39.30989597123023]}},{"type":"Feature","properties":{"resourceCoords":[2391.6,1942.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.64442458586126,39.30994346848098]}},{"type":"Feature","properties":{"resourceCoords":[2870.7,20.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6439348,39.311267]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0813/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p813","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0813/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0813/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4269.8,5276.1 -0.0,5321.9 -0.0,921.5 1167.2,173.5 1339.6,369.4 1762.1,0.0 2222.8,0.0 2671.1,511.9 1989.2,1107.9 2635.4,1842.4 3316.1,1249.0 4352.0,2433.4 4352.0,2863.0 3698.8,3424.3 4204.9,4115.8 4269.8,5276.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0813/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.6522225484927,39.316468711577045]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.64843742902592,39.316568832325686]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.6482779824903,39.31290952960628]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.65206310195708,39.31280940885764]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0814/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p814","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0814/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0814/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1749.5,824.1 3035.3,2489.2 3412.8,2804.7 3412.4,2913.1 3287.7,2912.3 3250.5,4958.8 1360.3,4935.3 1350.0,2305.3 868.1,1536.1 1749.5,824.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0814/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.64975261913077,39.315244310851035]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.64593688025494,39.31543651474728]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.64563079257039,39.31174754813879]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.64944653144622,39.31155534424254]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0815/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p815","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0815/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0815/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4320.9,5400.0 4071.2,5400.0 4080.2,4888.3 3700.4,4892.2 3624.7,4893.0 3625.9,5400.0 3448.8,5400.0 3264.4,5239.3 2726.1,5052.3 2658.5,4902.7 948.2,4716.5 453.0,5284.7 -0.0,5400.0 -0.0,-0.0 4352.0,-0.0 4320.9,5400.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0815/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.64989193349795,39.32111903649875]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.64729198997686,39.31892704088199]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.65078303866267,39.316413665042475]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.65338298218376,39.31860566065924]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0816/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p816","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0816/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0816/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,5400.0 -0.0,-0.0 4352.0,0.0 3638.3,3019.7 3638.9,4424.8 4352.0,4424.5 4352.0,5400.0 -0.0,5400.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0816/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.68587653058356,39.31413142361955]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.6782240081521,39.31448025804737]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67766850705402,39.307081671194894]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.68532102948548,39.306732836767075]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0817/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p817","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0817/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0817/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,2468.8 0.0,-0.0 4352.0,0.0 4352.0,108.8 4105.9,107.0 4074.4,5400.0 -0.0,5400.0 67.4,2453.3 -0.0,2468.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0817/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67450368605668,39.307891741144104]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67065515897518,39.308050800701345]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67040188087357,39.30432974286688]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67425040795507,39.304170683309636]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0818/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p818","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"16"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0818/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0818/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1397.0,114.3 3211.5,112.4 3216.2,5261.0 1408.3,5262.8 1397.0,114.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0818/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1396.0,2372.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6707783,39.3064068]}},{"type":"Feature","properties":{"resourceCoords":[1396.0,4276.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6707021,39.3050901]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0819/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p819","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0819/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0819/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"841.8,113.9 4352.0,91.5 4352.0,5273.2 2874.5,5283.6 2875.7,5400.0 -0.0,5400.0 -0.0,5302.7 877.8,5296.8 841.8,113.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0819/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.6699921451905,39.308081238236646]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66615504230089,39.30819806825365]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.665969007866,39.30448806499133]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66980611075562,39.304371234974326]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0820/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p820","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"14"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0820/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0820/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3745.7,5249.5 1244.3,5271.4 1238.2,132.6 1726.8,128.6 1734.6,622.6 4160.5,595.2 4352.0,1827.7 4352.0,3257.7 3734.8,3263.1 3745.7,5249.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0820/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1748.0,1468.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6656504,39.3072233]}},{"type":"Feature","properties":{"resourceCoords":[3732.0,4260.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6637798,39.3053407]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0821/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p821","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"12"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0821/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0821/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1405.1,3335.1 2024.9,3338.6 2045.3,1918.0 1777.4,0.0 3395.1,0.0 3377.3,3346.1 4352.0,3351.7 4352.0,5400.0 4106.3,5400.0 4109.5,4958.7 1387.7,4939.0 1405.1,3335.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0821/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1388.0,4336.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6637798,39.3053407]}},{"type":"Feature","properties":{"resourceCoords":[1992.0,1516.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6633721,39.3073067]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0822/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p822","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0822/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0822/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,675.4 1041.3,681.3 1074.3,0.0 2545.6,0.0 2536.7,404.8 2980.4,414.7 2933.7,923.1 3409.1,1653.8 3383.7,5339.1 -0.0,5400.0 -0.0,675.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0822/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66991614547395,39.297966843244154]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66606595650208,39.29811458864927]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66583072803355,39.294391392694294]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66968091700542,39.29424364728918]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0823/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p823","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0823/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0823/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1081.6,152.3 2426.1,158.6 2424.3,648.4 2713.2,647.7 2691.5,4702.6 2055.2,4702.2 2054.1,3347.2 1067.8,3341.7 1081.6,152.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0823/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66314471535883,39.308349977615435]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.65931205097338,39.30850376844336]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.6590671609416,39.30479807179476]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66289982532705,39.30464428096683]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0824/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p824","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"3"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0824/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0824/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4352.0,736.9 4352.0,5400.0 -0.0,5400.0 0.0,-0.0 4352.0,0.0 4352.0,224.1 3948.0,224.0 3948.0,744.8 4352.0,736.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0824/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3948.0,224.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6571157,39.3084704]}},{"type":"Feature","properties":{"resourceCoords":[3948.0,3308.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6569858,39.3062763]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0825/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p825","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0825/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0825/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"302.8,3692.4 655.5,3427.2 869.6,2747.5 818.4,892.4 1081.0,898.2 1082.1,769.1 1637.8,765.8 1457.3,892.8 3556.9,852.3 4352.0,922.6 4330.8,3943.6 3906.8,3951.1 3863.0,4754.9 854.0,4754.6 865.0,3573.4 302.8,3692.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0825/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67181027244402,39.311649291099556]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.6716512596379,39.308635841410755]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67644998877668,39.3084821040023]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.6766090015828,39.3114955536911]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0826/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p826","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0826/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0826/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"412.4,3860.1 456.0,1149.0 464.2,1000.7 590.3,1185.6 601.2,354.4 4054.1,393.7 4016.8,4991.5 2414.4,4975.8 2414.7,4866.0 -0.0,4860.6 -0.0,3929.8 412.4,3860.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0826/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.6730053248758,39.311280136171035]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.6691941087926,39.311444287798565]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66893270967421,39.30775948378811]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67274392575742,39.30759533216058]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0827/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p827","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0827/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0827/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"969.4,402.9 4352.0,393.9 4352.0,4923.3 976.1,4924.9 969.4,402.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0827/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2940.0,4924.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.667484,39.308088]}},{"type":"Feature","properties":{"resourceCoords":[2940.0,400.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.667668,39.3112284]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0828/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p828","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"5"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0828/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0828/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3591.0,3552.2 3893.8,5400.0 1478.2,5400.0 1476.0,4908.0 916.9,4906.2 933.1,386.0 3452.0,388.0 3445.1,3306.9 3503.1,3426.5 2600.0,3435.0 2599.0,3549.6 3591.0,3552.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0828/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1476.0,4908.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6657145,39.3081507]}},{"type":"Feature","properties":{"resourceCoords":[3452.0,388.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6641371,39.3113614]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0829/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p829","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0829/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0829/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,3520.4 923.3,3504.6 863.0,3383.7 839.4,0.0 3422.4,6.8 3429.0,405.3 4071.2,402.8 4125.5,3502.1 4352.0,3500.3 4352.0,3614.5 4168.3,3615.5 4224.3,4986.5 2877.3,4994.5 2876.9,4821.5 1237.0,4839.1 1014.2,3631.5 -0.0,3636.7 -0.0,3520.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0829/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66489550460118,39.31162595703381]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66106778170683,39.31174783020124]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66087370699975,39.30804708320683]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.6647014298941,39.3079252100394]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0830/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p830","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"6"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0830/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0830/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"671.3,3565.1 850.9,3566.9 852.8,3454.5 631.3,3452.8 580.6,3329.8 628.0,400.0 -0.0,392.6 0.0,-0.0 4352.0,0.0 4352.0,4719.1 990.4,4681.8 982.4,5400.0 699.4,5400.0 671.3,3565.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0830/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[704.0,4916.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6610009,39.3083269]}},{"type":"Feature","properties":{"resourceCoords":[628.0,400.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6613003,39.3114639]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0831__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p831 [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":"4352.0"},{"label":"split_canvas_h","value":"5400.0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0831__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0831/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1272.4,4633.6 2382.4,4637.0 2381.9,4869.0 1960.6,4867.6 1959.3,5400.0 4352.0,5400.0 4352.0,3390.6 3703.0,3388.8 3699.6,0.0 2204.6,0.0 2053.7,247.1 1954.6,826.2 1953.0,1569.3 1245.4,1572.0 1272.4,4633.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0831__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":[-76.65905269962649,39.31174939530962]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.65521528637282,39.31189443493042]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.65498431919677,39.30818434267739]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.65882173245042,39.30803930305659]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0832/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p832","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0832/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0832/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"577.3,1541.9 -0.0,1539.8 -0.0,872.2 1415.7,836.4 3079.5,322.3 4007.1,293.9 3977.6,5021.6 3457.8,5018.5 3455.4,5376.5 1229.8,5400.0 1231.2,5005.0 568.7,5000.9 577.3,1541.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0832/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.65635849303331,39.31289011783297]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.65259964824335,39.31304246884943]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.65235703506366,39.30940838364238]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.65611587985362,39.30925603262592]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0833/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p833","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"17"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0833/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0833/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 2869.6,0.0 2687.5,3298.0 2590.9,3259.4 2658.5,3460.5 2537.5,5198.6 -0.0,5046.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0833/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1780.0,432.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.679117,39.31399]}},{"type":"Feature","properties":{"resourceCoords":[764.0,5092.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6795583,39.3107893]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0834/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p834","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0834/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0834/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3625.3,1096.9 3549.6,4918.0 4352.0,4976.2 4352.0,5400.0 -0.0,5400.0 -0.0,1872.3 1345.9,1886.8 1379.1,192.2 1303.1,0.0 3625.3,1096.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0834/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67930551265594,39.31209853312527]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.6754393087541,39.31227613792204]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67515648302945,39.308538215500405]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.6790226869313,39.30836061070364]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0835/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p835","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0835/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0835/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2206.1,4355.8 -0.0,3315.1 0.0,-0.0 4352.0,0.0 4352.0,249.0 3007.2,242.5 2993.1,3650.9 4179.8,3660.3 4171.5,5201.6 3587.7,5044.0 3244.9,4629.7 3355.5,5186.7 2188.5,5161.1 2206.1,4355.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0835/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67822076206303,39.314454432337804]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67430927903011,39.31461834530265]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67404824832606,39.31083676864921]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67795973135898,39.310672855684366]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0836/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p836","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0836/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0836/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,3540.2 -0.0,-0.0 4352.0,0.0 4352.0,176.4 3113.0,5107.3 1221.9,5145.0 -0.0,3540.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0836/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1224.0,3544.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6742871,39.3120486]}},{"type":"Feature","properties":{"resourceCoords":[3236.0,3544.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6725334,39.3121155]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0837/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p837","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0837/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0837/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"590.0,4287.0 580.3,3561.2 -0.0,3570.6 -0.0,1994.6 561.0,1986.9 545.0,429.7 -0.0,435.2 -0.0,195.9 1649.9,168.4 1647.1,0.0 4352.0,0.0 4352.0,383.3 4051.5,388.8 4114.6,5089.8 1400.5,5123.9 1400.5,5119.7 611.9,5128.4 614.4,5400.0 478.8,5400.0 681.0,4286.2 590.0,4287.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0837/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67313593553844,39.31450050553966]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66937512161044,39.31459670750884]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66922192012441,39.310960802095074]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67298273405241,39.310864600125896]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0838__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p838 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4352.0"},{"label":"split_canvas_h","value":"5400.0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0838__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0838/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"380.7,4867.3 847.0,4858.0 847.5,4533.5 1570.3,4515.8 2334.1,4267.7 2531.9,4265.4 2533.8,4026.4 3243.6,4032.4 3278.4,2252.0 3281.3,2105.9 3768.7,1823.9 3732.9,1678.9 3746.7,1619.2 2352.0,1600.0 2334.8,0.0 -0.0,-0.0 -0.0,5400.0 262.6,5400.0 295.5,5029.1 380.7,4867.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0838__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2776.0,5020.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6528215,39.311772]}},{"type":"Feature","properties":{"resourceCoords":[3560.0,5020.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6514184,39.3118299]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0838__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p838 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"2334.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2017.2"},{"label":"split_canvas_h","value":"1627.6"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0838__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0838/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2334.8,0.0 2352.0,1600.0 4352.0,1627.6 4352.0,311.2 3528.8,785.4 2334.8,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0838__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[2334.8,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.68508410242717,39.312532311432975]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.68327343786976,39.31244432478045]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,1627.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.68336509225203,39.311315289213624]}},{"type":"Feature","properties":{"resourceCoords":[2334.8,1627.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.68517575680944,39.31140327586615]}},{"type":"Feature","properties":{"resourceCoords":[3529.1,783.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6840566,39.3119354]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0839/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p839","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0839/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0839/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1020.5,494.4 1026.0,118.1 -0.0,103.0 -0.0,-0.0 3304.3,0.0 3304.5,490.8 4352.0,495.0 4352.0,5111.0 719.6,5111.7 725.4,495.5 1020.5,494.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0839/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67028252211038,39.3146442301187]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66645455579138,39.31478598701758]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66622880776916,39.31108516581213]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67005677408817,39.31094340891325]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0840/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p840","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0840/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0840/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1048.1,5186.6 1049.4,562.3 -0.0,557.7 0.0,-0.0 3238.1,0.0 3345.1,325.5 4352.0,322.7 4352.0,574.1 3413.3,568.8 3444.3,5186.9 1048.1,5186.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0840/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66737885464886,39.31479705018779]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66355784966427,39.31493938111185]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66333118698755,39.31124529847615]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66715219197214,39.311102967552095]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0841/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p841","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0841/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0841/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"813.4,5041.7 828.4,1878.9 1200.8,1880.4 1209.9,348.3 1333.0,348.2 1332.6,0.0 1647.7,0.0 1645.7,403.1 3895.6,415.4 3897.6,0.0 4352.0,0.0 4352.0,5400.0 3662.1,5400.0 3665.3,5008.1 813.4,5041.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0841/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66349112789904,39.30510164781878]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.65575214947653,39.30540898729683]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.65526279036882,39.29792584410171]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.66300176879133,39.297618504623664]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0842/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p842","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"17"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0842/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0842/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2660.4,5400.0 92.1,5400.0 -0.0,5266.9 -0.0,4829.3 -0.0,2623.2 -0.0,139.1 743.7,-0.0 4352.0,-0.0 4352.0,221.4 3661.4,4502.9 2660.4,5400.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0842/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3020.0,2268.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.647657,39.3165527]}},{"type":"Feature","properties":{"resourceCoords":[3664.0,676.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6462531,39.3169709]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0843/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p843","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"15"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0843/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0843/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,710.1 -0.0,324.8 1286.7,360.5 1772.8,213.2 1770.9,50.5 -0.0,70.7 0.0,-0.0 2908.6,-0.0 2888.7,872.5 3690.1,918.6 3660.0,2300.0 4352.0,2300.0 4352.0,3174.3 2928.0,3176.0 2976.7,4506.6 2018.3,4485.7 2020.3,4763.0 1698.7,4488.3 1141.3,4493.1 1100.9,724.0 -0.0,710.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0843/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2928.0,3176.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6467664,39.3149046]}},{"type":"Feature","properties":{"resourceCoords":[3660.0,2300.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6457521,39.3149395]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0844/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p844","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"16"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0844/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0844/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,3554.9 1378.6,3574.1 1391.6,2710.3 708.0,2700.0 758.4,1335.8 -0.0,1280.6 -0.0,0.0 4352.0,-0.0 4352.0,4818.4 -0.0,4869.8 -0.0,3554.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0844/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[708.0,2700.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6457521,39.3149395]}},{"type":"Feature","properties":{"resourceCoords":[3544.0,4804.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.64538,39.3124971]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0845/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p845","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0845/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0845/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1800.3,13.1 4352.0,-0.0 4352.0,4877.8 1830.5,4848.5 1800.3,13.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0845/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1700.0,1828.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6429869,39.3135748]}},{"type":"Feature","properties":{"resourceCoords":[3348.0,3372.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6429939,39.3120076]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0846__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p846 [2]","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":"4352.0"},{"label":"split_canvas_h","value":"2907.6"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0846__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0846/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4352.0,0.0 0.0,-0.0 -0.0,2907.6 4352.0,2900.0 4352.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0846__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[792.0,2407.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6967154,39.2931708]}},{"type":"Feature","properties":{"resourceCoords":[3804.0,2407.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6939072,39.2934267]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0848/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p848","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0848/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0848/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,-0.0 4352.0,0.0 4352.0,5400.0 1040.7,5400.0 464.3,4703.1 -0.0,4977.2 0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0848/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.68657242790539,39.30104903573683]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.68470193557523,39.30302725673699]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.68155217125542,39.30121857386105]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.68342266358557,39.29924035286089]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0849/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p849","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0849/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0849/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 1035.7,0.0 1028.3,432.2 3533.8,466.3 3542.0,0.0 3730.3,0.0 3638.1,1062.3 3674.3,1062.3 3401.6,2658.5 3347.1,5107.8 3264.8,5276.6 2654.3,5263.9 2652.5,5400.0 -0.0,5400.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0849/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.68703745233609,39.29723752892575]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.68324116720133,39.297407598475]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.68297039860664,39.29373649318681]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.6867666837414,39.293566423637564]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0850/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p850","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0850/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0850/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"603.7,5176.1 683.0,5006.8 704.9,2566.8 996.9,382.4 3700.0,372.0 3678.4,5169.5 3101.9,5171.6 3103.9,5377.6 -0.0,5400.0 -0.0,5171.9 603.7,5176.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0850/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3700.0,2548.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6812936,39.2956658]}},{"type":"Feature","properties":{"resourceCoords":[3700.0,372.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.681378,39.297152]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0851/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p851","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0851/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0851/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,5194.1 580.2,5198.1 649.5,404.9 3857.4,437.5 3807.8,5219.6 4352.0,5223.6 4352.0,5400.0 -0.0,5400.0 -0.0,5194.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0851/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.68196664880112,39.29740456742163]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67815157215348,39.297565747328186]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67789495622219,39.29387647853099]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.68171003286983,39.293715298624434]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0852/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p852","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0852/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0852/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"583.8,5271.6 514.7,1006.8 2464.3,970.8 2528.8,911.1 2511.9,0.0 4352.0,0.0 4352.0,307.5 3371.8,1365.2 4070.4,2009.9 3249.6,2885.3 3254.3,3407.3 3792.0,3403.7 3826.3,5209.7 3270.5,5220.5 3271.7,5357.0 1134.4,5400.0 1130.7,5261.2 583.8,5271.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0852/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.6790172857071,39.29755551091667]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67521776206839,39.29763723378127]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67508765010432,39.29396301302909]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67888717374304,39.29388129016449]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0853/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p853","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0853/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0853/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,5261.9 561.9,5256.1 543.6,3430.1 -0.0,3428.9 -0.0,2901.2 837.7,2023.7 137.3,1365.7 1137.7,305.3 1140.5,0.0 3326.6,0.0 3595.6,447.9 4352.0,442.6 4352.0,5400.0 -0.0,5400.0 -0.0,5261.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0853/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67620229347096,39.297605461223725]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67244486952173,39.29771253023866]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67227440345778,39.29407902476226]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67603182740702,39.293971955747324]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0854/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p854","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0854/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0854/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3809.4,5182.5 -0.0,5169.1 0.0,0.0 4352.0,57.1 4352.0,1995.3 3816.1,1992.6 3809.4,5182.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0854/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.67696223849906,39.29993453749718]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.6767852478143,39.29694330507834]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.68154780070081,39.2967721576005]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.68172479138558,39.29976339001934]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0855/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p855","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0855/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0855/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3736.4,5400.0 -0.0,5350.8 -0.0,2984.0 434.1,2459.2 -0.0,2390.2 -0.0,14.8 3792.5,65.7 3769.4,2752.7 3307.6,2749.0 3307.9,2934.1 3766.3,2941.5 3736.4,5400.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0855/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.68150840194899,39.299777508637675]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.68129188567607,39.296767580504124]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.68608419436403,39.29655821186481]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.68630071063694,39.299568139998364]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0856/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p856","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"21"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0856/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0856/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1232.5,5032.1 1068.1,5084.9 1066.6,5400.0 -0.0,5400.0 -0.0,1376.4 4113.3,1374.1 4113.1,1105.9 4352.0,1107.1 4352.0,1463.2 3482.3,1466.8 3473.1,4995.7 1355.4,4998.5 1360.3,4528.3 1233.5,4527.6 1232.5,5032.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0856/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2904.0,3984.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6624375,39.3124932]}},{"type":"Feature","properties":{"resourceCoords":[2904.0,2744.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6602653,39.3125819]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0857/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p857","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"17"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0857/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0857/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"502.1,5051.1 500.0,468.4 -0.0,478.4 0.0,-0.0 1420.7,0.0 1396.6,450.6 3618.1,447.0 3633.2,5034.2 2372.2,5048.6 2372.7,5383.6 -0.0,5400.0 -0.0,5051.8 502.1,5051.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0857/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2068.0,3516.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6513585,39.310761]}},{"type":"Feature","properties":{"resourceCoords":[500.0,452.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.6528843,39.3128326]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0867/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p867","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"2"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0867/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0867/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 2059.7,316.5 2449.9,2419.9 2418.8,2464.4 2466.6,2510.3 2818.9,4409.4 3216.8,4004.6 3504.4,4318.8 3621.4,4779.9 2918.7,4947.3 2931.9,5018.6 4352.0,4755.1 4352.0,5400.0 -0.0,5400.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0867/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2940.0,4992.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.7020376,39.2923742]}},{"type":"Feature","properties":{"resourceCoords":[708.0,4208.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.7064881,39.2937456]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0868/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baltimore, Maryland | 1953 | sanborn03573_045 p868","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:50:34Z","modified":"2026-09-22T02:50:34Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0868/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0868/info.json","type":"ImageService2","height":5400,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4352.0,3998.8 2653.8,3955.8 2617.3,5400.0 -0.0,5400.0 -0.0,5318.1 814.8,5277.0 779.9,4741.0 525.2,4332.9 -0.0,4700.4 -0.0,-0.0 4352.0,0.0 4352.0,3998.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd384m:g3844m:g3844bm:g3844bm_g03573195308:03573_08_1953-0868/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.703431,39.2997478]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.6957101,39.3006053]}},{"type":"Feature","properties":{"resourceCoords":[4352.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.6943352,39.293191300000004]}},{"type":"Feature","properties":{"resourceCoords":[0.0,5400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-76.7020561,39.2923338]}}]}}]}