{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn00014_010.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Bessemer, Alabama | 1950 | 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":"46"},{"label":"placed","value":"34"},{"label":"unplaced","value":"12"},{"label":"fit sources","value":"georef-snap 17, georef 13, snap:0 3, georef-street 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"6 sheet(s) cut into 12 panels"},{"label":"unplaced pages","value":"p1 (tier 4, 33.40428,-86.95410 +/-3700m); p15 (tier 1, 33.40893,-86.95646 +/-518m); p22__1 (tier 2, 33.38268,-86.95524 +/-173m); p28__2 (tier 2, 33.40958,-86.93216 +/-807m); p30__2 (tier 1, 33.40385,-86.97231 +/-352m); p31 (tier 1, 33.41197,-86.97633 +/-508m); p32__2 (tier 1, 33.41603,-86.97775 +/-236m); p37__1 (tier 2, 33.43554,-86.94478 +/-100m); p38__1 (tier 2, 33.41134,-86.95477 +/-430m); p4 (tier 1, 33.40420,-86.96173 +/-513m); p6 (tier 2, 33.40941,-86.95615 +/-1156m); p8 (tier 1, 33.40486,-86.96302 +/-518m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p10","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0010/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0010/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 0.0,-0.0 6452.0,0.0 6452.0,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2648.0,2544.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.967698,33.385084]}},{"type":"Feature","properties":{"resourceCoords":[2648.0,348.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9687433,33.3856898]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0011/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0011/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,3031.1 -0.0,223.1 545.8,213.7 544.2,0.0 6452.0,0.0 6145.3,76.3 6152.2,3040.4 5848.9,3038.0 5895.5,7432.2 591.9,7478.1 558.9,3032.3 -0.0,3031.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0011/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95443277968681,33.39795322671602]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95236289247964,33.400486794263685]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.94878898847786,33.39842285225574]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95085887568503,33.395889284708076]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p12","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"26"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0012/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0012/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"304.5,2967.8 329.1,0.0 6046.4,190.0 5998.0,7365.3 -0.0,7363.9 -0.0,2964.0 304.5,2967.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3136.0,5156.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9491113,33.4000793]}},{"type":"Feature","properties":{"resourceCoords":[6016.0,2988.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.949215,33.401784]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p13","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0013/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0013/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"503.4,7241.6 538.5,146.3 6056.3,195.7 6057.7,7241.1 503.4,7241.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0013/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.9507629,33.402364]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.9486846,33.4049202]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.94505310000001,33.402862400000004]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.9471314,33.4003062]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p14","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0014/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0014/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4026.5,70.8 6203.1,0.0 6226.0,2388.2 6452.0,2387.3 6452.0,7652.0 6277.2,7652.0 6271.5,7154.6 3993.9,7145.2 4026.5,70.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0014/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95401001200683,33.4041957341672]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95195737697583,33.40669425766773]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.94843265552284,33.40464766422382]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95048529055384,33.402149140723296]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0016/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0016/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6006.2,2983.0 360.6,2968.1 312.9,176.0 6006.1,196.4 6006.2,2983.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0016/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96012254747284,33.407767659219985]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95808344521444,33.410294416454434]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95451873762114,33.4082614050377]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95655783987954,33.40573464780325]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p17","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"23"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0017/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0017/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"421.6,2051.3 523.5,1809.1 846.6,1811.3 843.0,418.7 -0.0,419.5 -0.0,300.0 842.7,297.9 841.9,0.0 4670.3,0.0 4673.1,285.2 6452.0,298.6 6452.0,385.9 4672.9,401.8 4678.4,1113.5 6105.9,1124.2 6092.7,2514.1 4679.0,2495.4 4684.1,3202.0 6095.4,3201.4 6091.6,5950.2 6452.0,5949.7 6452.0,6629.4 6452.0,7228.0 403.6,7193.7 409.4,6077.4 -0.0,6080.2 -0.0,4665.7 403.2,4670.8 421.6,2051.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3252.0,7188.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9590126,33.3976843]}},{"type":"Feature","properties":{"resourceCoords":[6092.0,4644.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9595747,33.4011885]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p18","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0018/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0018/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 162.1,0.0 164.0,152.4 382.1,0.0 5771.2,0.0 5775.3,414.4 6185.3,410.3 6041.4,6814.5 5173.7,6811.2 2018.3,7473.7 2009.1,5955.0 1420.4,6037.1 -0.0,5956.8 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0018/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96605675259309,33.391577129998275]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96201382621449,33.39650388775843]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95506453760214,33.39247228346804]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95910746398074,33.387545525707885]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p19","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"50"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0019/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0019/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,5614.5 -0.0,138.0 6452.0,0.0 6452.0,3336.7 6068.6,3346.7 6071.7,3460.3 5780.7,3472.9 5809.9,4967.1 6108.0,4960.0 6171.8,7325.2 3250.9,7382.0 3192.9,5549.7 -0.0,5614.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0019/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4680.0,6192.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.952662,33.395681]}},{"type":"Feature","properties":{"resourceCoords":[6108.0,4960.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9528372,33.3973548]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0002/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 6452.0,0.0 6452.0,7085.1 161.3,7086.6 159.9,7022.0 -0.0,7018.4 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95475958584056,33.40324923915626]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95269640719604,33.405736044820834]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.94918821093111,33.40367894197374]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95125138957563,33.40119213630916]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p20","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0020/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0020/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 5674.6,0.0 5602.6,388.5 6366.5,2125.5 5181.4,2659.1 5025.5,3499.8 5741.5,3184.4 6281.7,4399.1 5378.5,4827.5 5645.2,5416.6 5608.4,6669.9 5143.1,6572.0 5117.9,7052.9 4081.9,6949.0 4373.4,7652.0 0.0,7652.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0020/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96480985170845,33.38001662236625]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.9619362688364,33.385378100311826]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95437476434692,33.38251219893453]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95724834721898,33.37715072098895]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p21","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0021/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0021/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,4711.1 -0.0,3868.2 1052.7,3137.9 -0.0,1591.7 -0.0,-0.0 4140.8,0.0 4141.2,137.8 5566.7,214.4 6157.1,130.3 6214.0,6528.2 680.8,5862.1 1379.3,5356.8 637.2,4276.6 -0.0,4711.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0021/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96336839610943,33.385366076438466]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.9593224504488,33.39026642798475]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95241090153084,33.386231524955946]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95645684719148,33.38133117340966]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0022__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p22 [2]","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"21"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"6032.8"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0022__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0022/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,2988.9 0.0,5844.0 6452.0,6032.8 6452.0,357.3 5915.7,425.1 5867.0,0.0 557.2,0.0 469.6,79.1 867.5,535.7 1169.3,1672.0 723.7,1711.2 829.6,2150.3 -0.0,2304.5 -0.0,2506.6 318.7,2892.3 -0.0,2988.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0022__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[400.0,2988.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.955154,33.380783]}},{"type":"Feature","properties":{"resourceCoords":[4712.0,1928.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9528095,33.3846029]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p23","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0023/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0023/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"424.5,4360.6 466.1,316.9 6140.9,345.2 6113.1,7652.0 -0.0,7652.0 -0.0,4361.7 424.5,4360.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0023/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95310405938612,33.39383436766606]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.94909538740016,33.398810286803986]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.94207656273365,33.39481295087764]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.9460852347196,33.38983703173972]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p24","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"30"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0024/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0024/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"335.1,305.5 6052.1,248.8 6106.5,5155.9 6452.0,5152.2 6452.0,7652.0 -0.0,7652.0 -0.0,7550.0 360.5,7545.0 335.1,305.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0024/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3260.0,7300.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.940662,33.396912]}},{"type":"Feature","properties":{"resourceCoords":[4660.0,1664.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.94496,33.400992]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p25","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0025/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0025/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"401.7,7589.3 429.0,0.0 6452.0,0.0 6452.0,2582.7 6231.8,2516.5 6127.5,2862.5 5898.9,3161.1 5601.1,3391.4 5987.7,4034.4 5770.0,4034.9 6452.0,5205.9 6452.0,5490.6 5704.9,5485.2 5695.8,6112.5 6452.0,6170.7 6452.0,6956.1 6109.0,6953.4 6090.6,7652.0 750.6,7652.0 751.5,7592.8 401.7,7589.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0025/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.94801971286499,33.40383553195663]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.94407454421373,33.40880565112756]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.93706309093989,33.40487209332124]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.94100825959114,33.39990197415031]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p26","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0026/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0026/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"420.7,5430.6 429.0,4725.9 774.9,4723.6 763.3,3931.7 -0.0,3911.8 -0.0,3251.5 936.9,3244.6 44.3,1788.2 263.9,1784.5 -0.0,1359.8 -0.0,1053.7 387.6,600.8 487.6,250.3 710.7,313.9 706.1,0.0 6452.0,0.0 6452.0,1404.9 6154.9,1406.0 6211.3,7513.0 5615.1,7514.6 5615.6,7652.0 -0.0,7652.0 -0.0,5436.7 420.7,5430.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0026/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.942430753072,33.40710397149311]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.93843338123118,33.41198404551995]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.93154870353513,33.407998584642584]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.93554607537595,33.40311851061574]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p27","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0027/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0027/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"600.1,6147.3 565.4,0.0 6452.0,0.0 6452.0,7652.0 -0.0,7652.0 -0.0,6146.8 600.1,6147.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0027/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.93769865804136,33.410601173241886]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.93374785428317,33.41546116194878]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.92689121627988,33.411522300522165]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.93084202003807,33.406662311815275]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0028__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p28 [1]","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":"5497.6"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0028__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0028/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5016.0,7652.0 5497.6,7652.0 5458.0,7350.4 3852.4,3219.6 0.0,0.0 -0.0,7652.0 5016.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0028__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[724.2,5772.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.938104,33.41463]}},{"type":"Feature","properties":{"resourceCoords":[724.2,6924.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.93757,33.414319]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0029/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p29","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"26"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0029/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0029/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 -0.0,-0.0 6452.0,0.0 6452.0,5572.8 6152.5,5574.3 6145.2,5976.6 3292.0,5988.0 3289.7,7411.7 1866.8,7346.9 1865.7,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0029/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3292.0,5988.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.967394,33.405628]}},{"type":"Feature","properties":{"resourceCoords":[2836.0,1732.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.97159,33.407494]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0003/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"295.4,4119.9 1742.4,1920.3 3194.0,0.0 6452.0,0.0 6452.0,504.6 6147.4,7652.0 6040.5,7652.0 -0.0,7652.0 -0.0,6968.0 295.4,4119.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96365770787037,33.40641389752562]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95963969645315,33.41132663795221]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95270921669656,33.40732043551854]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95672722811378,33.40240769509195]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0030__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p30 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"12"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2315.6"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"5336.4"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0030__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0030/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6026.8,6841.3 6040.8,7652.0 6288.7,7652.0 6452.0,7053.5 6452.0,3589.0 6120.7,3590.4 6120.7,2950.8 5656.9,2967.5 5520.4,2970.6 5517.6,2324.5 529.2,2372.0 0.0,2375.2 0.0,2624.8 -0.0,6944.8 6026.8,6841.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0030__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2916.0,4430.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.975206,33.410074]}},{"type":"Feature","properties":{"resourceCoords":[144.0,5861.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.975689,33.40714]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0032__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p32 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"11"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0032__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0032/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7019.9 609.5,7002.3 606.6,7652.0 4236.0,7652.0 5364.0,7652.0 6452.0,7652.0 6452.0,3375.2 5526.0,3363.6 4625.2,3910.0 3737.2,3385.6 3718.4,0.0 3440.0,0.0 -0.0,-0.0 -0.0,7019.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0032__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2644.0,2760.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.97708,33.417201]}},{"type":"Feature","properties":{"resourceCoords":[1548.0,1116.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.979291,33.417239]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0033/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p33","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0033/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0033/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"759.4,5138.6 758.0,4634.4 -0.0,4636.5 0.0,-0.0 6452.0,0.0 6452.0,2604.3 6086.7,2606.4 6135.9,7206.3 423.2,7278.9 441.1,5112.4 759.4,5138.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0033/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96430725298023,33.41318767191696]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96027018837972,33.4180949163695]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95334666514145,33.41407017995793]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95738372974198,33.40916293550539]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0034/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p34","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"14"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0034/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0034/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"304.3,7434.9 316.6,0.0 6452.0,0.0 6452.0,5552.9 6452.0,5980.4 6452.0,6689.0 6452.0,7652.0 863.4,7652.0 863.6,7428.9 304.3,7434.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0034/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3168.0,3140.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9534864,33.4169987]}},{"type":"Feature","properties":{"resourceCoords":[3168.0,316.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9560767,33.4184651]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0035/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p35","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0035/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0035/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,0.0 6452.0,539.7 5995.1,663.6 5883.7,1367.8 6068.4,2176.3 6452.0,2073.4 6452.0,3205.6 5554.8,3446.3 5277.9,5196.7 5559.8,5271.3 5243.8,6469.2 5083.4,6425.5 4948.9,7275.6 6452.0,7513.4 6452.0,7652.0 0.0,7652.0 0.0,-0.0 6452.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0035/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95519415423783,33.42815164963578]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.9534142337123,33.433757938195114]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.94550297883714,33.431983781854726]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.94728289936268,33.42637749329539]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0036/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p36","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0036/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0036/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"668.9,2300.3 307.5,2461.3 0.0,1700.9 0.0,984.0 430.2,791.5 346.2,260.5 -0.0,315.3 -0.0,-0.0 6452.0,0.0 6452.0,7652.0 0.0,7652.0 0.0,6794.8 164.6,6812.8 289.0,5585.2 0.0,5555.7 0.0,3790.6 781.7,3443.4 845.2,3414.1 668.9,2300.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0036/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.9538209529252,33.433567668600055]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95100903245613,33.438892232453426]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.94349491585508,33.43608957288736]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.94630683632415,33.43076500903399]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0037__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p37 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"1840.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4612.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0037__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0037/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 6452.0,-0.0 5676.0,0.0 5386.4,0.0 5236.8,0.0 2249.6,0.0 2240.8,568.8 3589.2,838.0 3938.4,1109.6 2308.0,3488.4 1840.0,5559.2 2479.2,5566.8 2501.2,7652.0 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0037__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3418.6,2848.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9238766,33.4268603]}},{"type":"Feature","properties":{"resourceCoords":[2583.4,6848.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.926927,33.423524]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0038__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p38 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"21"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0038__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0038/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 6452.0,3367.1 5897.2,3373.5 5899.0,537.7 246.6,582.1 241.0,5235.4 2686.4,5228.8 2688.0,7652.0 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0038__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3076.0,5508.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.951128,33.409281]}},{"type":"Feature","properties":{"resourceCoords":[3076.0,560.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9557,33.411875]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0039/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p39","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0039/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0039/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,0.0 6452.0,1428.0 5609.8,1422.4 5609.5,1542.1 6452.0,1549.0 6452.0,2944.6 6129.1,2939.4 6038.3,3055.8 6001.4,5805.9 5598.5,5797.2 5595.9,6801.1 219.5,6734.1 -0.0,6883.4 -0.0,-0.0 6452.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0039/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.97213471748324,33.39519088505636]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96815613488654,33.40017092117037]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96113141984664,33.396203636497674]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96511000244334,33.39122360038366]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0040/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p40","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0040/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0040/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1157.1,7182.8 526.0,3999.7 585.4,33.4 6452.0,80.5 6452.0,7210.6 1157.1,7182.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0040/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.9546577745329,33.39526798541961]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.94879119890825,33.39194543991894]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95347764651493,33.386095208448445]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95934422213958,33.38941775394911]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0005/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0005/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"13.5,3190.0 413.3,3200.4 367.6,354.4 3276.8,344.1 3269.9,0.0 6452.0,0.0 6452.0,3557.3 6262.5,3558.5 6260.5,4625.9 6260.9,6027.6 6278.9,7361.6 498.9,7400.3 419.4,4669.6 -0.0,4672.7 13.5,3190.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0005/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96525543452407,33.40740609746971]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96321993330812,33.409861748597834]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95975555532873,33.40783231909769]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96179105654467,33.40537666796957]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0007/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0007/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,4246.5 -0.0,398.8 4760.2,0.0 6452.0,0.0 6194.6,6757.5 4754.5,7466.9 517.9,7443.5 -0.0,4246.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96895241425074,33.40435444734448]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.9649374347187,33.409347276756]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95789387027746,33.40534415521177]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96190884980949,33.40035132580025]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1950 | sanborn00014_010 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:35:19Z","modified":"2026-09-22T09:35:19Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0009/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0009/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"411.8,2821.7 393.2,1394.4 384.2,680.0 3222.9,0.0 3702.5,0.0 4437.2,0.0 6105.6,2059.9 6115.8,7053.2 4362.9,7652.0 1843.6,7652.0 411.8,2821.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141950:00014_1950-0009/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96654453065405,33.403113942811494]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96250486039199,33.408086590567194]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95549003848227,33.40405869530261]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95952970874433,33.39908604754691]}}]}}]}