{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn08580_028.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Houston, Texas | 1950 | mapsnap generated fit (2026-09-24)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-24"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"76"},{"label":"placed","value":"54"},{"label":"unplaced","value":"22"},{"label":"fit sources","value":"georef-snap 31, georef 21, snap:2 1, georef-street 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"7 sheet(s) cut into 15 panels"},{"label":"unplaced pages","value":"p0 (tier 1, 29.71193,-95.20165 +/-100m); p0a (tier 1, 29.71193,-95.20165 +/-100m); p0b__1 (tier 4, 29.72788,-95.23325 +/-10151m); p0b__2 (tier 4, 29.72788,-95.23325 +/-10151m); p1204 (tier 1, 29.73593,-95.24128 +/-515m); p1205__2 (tier 1, 29.74597,-95.24312 +/-209m); p1208__2 (tier 1, 29.73224,-95.25712 +/-264m); p1211__1 (tier 4, 29.72788,-95.23325 +/-10151m); p1211__2 (tier 1, 29.54071,-95.12237 +/-363m); p1212 (tier 1, 29.74532,-94.96483 +/-528m); p1213 (tier 2, 29.75740,-95.28587 +/-368m); p1216__1 (tier 2, 29.77147,-95.28351 +/-580m); p1219 (tier 2, 29.78310,-95.28534 +/-100m); p1231 (tier 2, 29.75779,-95.19875 +/-100m); p1232 (tier 1, 29.66177,-95.23259 +/-516m); p1233 (tier 4, 29.72788,-95.23325 +/-10151m); p1234 (tier 4, 29.72788,-95.23325 +/-10151m); p1304 (tier 2, 29.68465,-95.25540 +/-156m); p1305__1 (tier 1, 30.09057,-95.61876 +/-111m); p1322__2 (tier 2, 29.70068,-95.20284 +/-1765m); p1324 (tier 2, 29.70757,-95.19627 +/-370m); p1327 (tier 4, 29.72788,-95.23325 +/-10151m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1201/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1201","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"27"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1201/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1201/info.json","type":"ImageService2","height":7680,"width":6640},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 721.5,0.0 719.0,225.4 3308.9,249.8 3311.5,0.0 6066.7,0.0 5977.9,7680.0 -0.0,7680.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1201/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4536.0,1076.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2418463,29.7382957]}},{"type":"Feature","properties":{"resourceCoords":[3260.0,5020.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2431086,29.7346563]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1202/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1202","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"22"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1202/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1202/info.json","type":"ImageService2","height":7680,"width":6604},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2212.2,0.0 6569.4,0.0 6574.4,194.7 5597.0,219.1 5523.0,284.1 5528.1,505.1 5057.0,513.0 5073.1,1806.7 5539.4,1805.0 5560.3,2595.8 5082.9,2595.9 5092.8,3388.4 5581.2,3387.2 5666.1,6600.0 5132.8,6600.3 5146.2,7679.0 982.7,7618.7 914.6,198.8 2214.1,192.3 2212.2,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1202/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[944.0,3400.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2402186,29.7361186]}},{"type":"Feature","properties":{"resourceCoords":[4564.0,4972.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.236411,29.734684]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1203/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1203","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1203/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1203/info.json","type":"ImageService2","height":7680,"width":6640},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"488.8,3424.7 -0.0,3419.8 -0.0,2633.0 477.8,2638.9 466.7,1853.5 -0.0,1849.4 -0.0,564.8 471.6,562.9 469.3,343.4 544.2,279.9 1522.7,267.9 1519.0,0.0 2774.8,0.0 2779.0,283.4 5093.0,312.6 5096.3,543.9 5879.3,540.7 5877.0,0.0 6640.0,0.0 6640.0,7680.0 -0.0,7680.0 -0.0,6608.9 533.7,6615.4 488.8,3424.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1203/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.23589941673204,29.73927132690754]}},{"type":"Feature","properties":{"resourceCoords":[6640.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.22892178079839,29.73934735992002]}},{"type":"Feature","properties":{"resourceCoords":[6640.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.2288212125588,29.732290102857412]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.23579884849245,29.732214069844932]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1205__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1205 [1]","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"35"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6616.0"},{"label":"split_canvas_h","value":"7680.0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1205__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1205/info.json","type":"ImageService2","height":7680,"width":6616},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7434.4 2581.4,7431.0 2581.3,7182.1 5327.2,7152.7 5327.1,7447.9 6616.0,7454.4 6616.0,0.0 812.0,0.0 820.8,2045.2 790.0,4037.6 0.0,4037.6 -0.0,7434.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1205__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2580.0,4272.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2431959,29.7419356]}},{"type":"Feature","properties":{"resourceCoords":[1340.0,7424.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2444776,29.7390249]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1206/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1206","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"17"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1206/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1206/info.json","type":"ImageService2","height":7680,"width":6652},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 6652.0,0.0 6652.0,7680.0 5873.8,7680.0 5871.5,7448.2 3571.9,7409.5 3568.9,7125.5 2320.9,7120.3 2321.6,7195.0 -0.0,7156.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1206/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2316.0,6596.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2343176,29.7397695]}},{"type":"Feature","properties":{"resourceCoords":[3508.0,1844.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2331412,29.7441458]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1207/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1207","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1207/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1207/info.json","type":"ImageService2","height":7680,"width":6616},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4324.5,7680.0 4327.8,6709.7 2465.9,6703.1 2460.1,7680.0 453.0,7680.0 468.2,3044.7 -0.0,3077.0 -0.0,2156.8 466.9,2143.7 472.8,1178.7 1345.7,1179.0 1344.9,995.0 -0.0,1001.2 -0.0,-0.0 6616.0,0.0 6616.0,7680.0 6423.9,7680.0 6427.0,6717.3 5650.0,6714.5 5644.7,7680.0 4324.5,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1207/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.25805783728526,29.744748533116674]}},{"type":"Feature","properties":{"resourceCoords":[6616.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.25109621707436,29.744887527692132]}},{"type":"Feature","properties":{"resourceCoords":[6616.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.25091169310213,29.73782131297322]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.25787331331303,29.737682318397763]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1208__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1208 [1]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6652.0"},{"label":"split_canvas_h","value":"7680.0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1208__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1208/info.json","type":"ImageService2","height":7680,"width":6652},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7680.0 6652.0,7680.0 6652.0,4492.0 4052.0,4492.4 3993.2,4492.4 4097.6,526.4 4106.4,0.0 2628.3,0.0 2625.2,1000.4 594.3,1007.7 596.5,1222.6 588.0,1222.7 633.3,4816.6 551.2,5316.2 151.6,5946.0 162.8,6074.5 -0.0,6074.1 -0.0,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1208__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[588.0,2148.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2573726,29.7366672]}},{"type":"Feature","properties":{"resourceCoords":[588.0,4292.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2573295,29.7347406]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1209/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1209","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1209/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1209/info.json","type":"ImageService2","height":7680,"width":6616},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5418.2,3327.0 5839.2,4085.9 6616.0,4994.5 6616.0,5871.7 6408.4,6131.6 6616.0,6294.0 6616.0,7518.4 6492.3,7680.0 -0.0,7680.0 -0.0,0.0 184.0,-0.0 179.7,873.3 1145.1,883.7 1156.1,1350.9 2076.7,1355.1 2046.6,886.6 5900.0,917.9 6066.5,2213.2 6321.4,2911.5 5418.2,3327.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1209/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.25661879961011,29.743861298478524]}},{"type":"Feature","properties":{"resourceCoords":[6616.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.25642769674012,29.737777636447603]}},{"type":"Feature","properties":{"resourceCoords":[6616.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.26450409801471,29.737583661408934]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.2646952008847,29.743667323439855]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1210/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1210","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1210/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1210/info.json","type":"ImageService2","height":7680,"width":6652},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1214.7,4465.9 491.2,3319.9 1385.4,2897.1 1124.6,2204.9 945.4,917.9 5428.0,859.8 5913.9,939.0 6527.1,1329.0 6652.0,1191.9 6652.0,7680.0 1605.4,7639.8 1726.8,7477.7 1714.0,6259.5 1505.7,6100.1 1709.6,5839.4 1700.4,4966.5 1214.7,4465.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1210/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.25646028162483,29.739301036040168]}},{"type":"Feature","properties":{"resourceCoords":[6652.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.25634119110933,29.733152056824647]}},{"type":"Feature","properties":{"resourceCoords":[6652.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.26445976603408,29.733031825299523]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.26457885654958,29.739180804515044]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1214/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1214","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1214/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1214/info.json","type":"ImageService2","height":7680,"width":6652},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,2379.4 328.5,2213.2 1401.1,-0.0 6652.0,-0.0 6652.0,7680.0 -0.0,7680.0 -0.0,2379.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1214/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[764.0,884.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.285027,29.752174]}},{"type":"Feature","properties":{"resourceCoords":[3356.0,628.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.283543,29.7501298]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1215/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1215","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1215/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1215/info.json","type":"ImageService2","height":7680,"width":6616},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7632.5 -0.0,-0.0 250.3,0.0 255.5,444.5 3592.8,437.3 5080.0,2001.7 5107.7,6171.8 6616.0,6183.7 6616.0,7680.0 -0.0,7632.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1215/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.28729330880267,29.758765304934517]}},{"type":"Feature","properties":{"resourceCoords":[6616.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.28060575677661,29.758830351771493]}},{"type":"Feature","properties":{"resourceCoords":[6616.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.28051938827903,29.752043483205956]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.28720694030508,29.75197843636898]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1216__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1216 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6652.0"},{"label":"split_canvas_h","value":"3504.8"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1216__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1216/info.json","type":"ImageService2","height":7680,"width":6652},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,0.0 -0.0,882.7 392.3,884.4 381.1,2942.8 897.4,2941.7 894.9,3504.6 6652.0,3503.6 6652.0,-0.0 -0.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1216__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5716.0,1300.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.282164,29.771976]}},{"type":"Feature","properties":{"resourceCoords":[392.0,1300.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.282265,29.776895]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1217/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1217","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1217/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1217/info.json","type":"ImageService2","height":7680,"width":6616},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6616.0,0.0 6591.2,6751.1 -0.0,6620.6 -0.0,0.0 6616.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1217/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.28747511811598,29.766479643956348]}},{"type":"Feature","properties":{"resourceCoords":[6616.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.28057793126098,29.766618634457892]}},{"type":"Feature","properties":{"resourceCoords":[6616.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.2803933725717,29.759619343237148]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.2872905594267,29.759480352735604]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1218/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1218","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"40"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1218/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1218/info.json","type":"ImageService2","height":7680,"width":6652},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3684.8,5943.6 2279.1,5958.5 2288.9,5206.7 505.2,5218.4 492.6,4477.3 2268.3,4461.6 2266.4,3707.1 483.8,3721.1 474.0,2984.3 3649.3,2957.2 3627.8,2209.1 462.4,2241.1 454.1,1816.2 216.7,1818.1 262.2,7680.0 -0.0,7680.0 -0.0,-0.0 6652.0,0.0 6652.0,7680.0 3706.6,7680.0 3703.7,7415.6 2304.9,7439.2 2289.8,6706.7 3698.7,6690.5 3684.8,5943.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1218/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3676.0,4436.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2835976,29.7563558]}},{"type":"Feature","properties":{"resourceCoords":[5076.0,5188.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.282103,29.7556649]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1220/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1220","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1220/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1220/info.json","type":"ImageService2","height":7680,"width":6652},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 6652.0,0.0 6652.0,7159.7 4569.5,7157.6 4573.0,7680.0 -0.0,7680.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1220/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2132.0,4180.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2866238,29.7795682]}},{"type":"Feature","properties":{"resourceCoords":[6216.0,4180.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.282323,29.779618]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1221/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1221","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1221/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1221/info.json","type":"ImageService2","height":7680,"width":6548},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5403.6,7680.0 -0.0,7680.0 -0.0,-0.0 2533.0,0.0 2533.5,155.1 2743.6,164.8 5422.2,152.5 5403.6,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1221/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.25301945597445,29.767543779976116]}},{"type":"Feature","properties":{"resourceCoords":[6548.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.24621079802525,29.76767041369543]}},{"type":"Feature","properties":{"resourceCoords":[6548.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.24604089928033,29.7606892823778]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.25284955722954,29.760562648658485]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1222/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1222","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1222/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1222/info.json","type":"ImageService2","height":7680,"width":6652},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1544.2,102.6 5138.0,125.4 5079.9,7680.0 -0.0,7680.0 -0.0,7584.8 1520.3,7585.9 1544.2,102.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1222/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.24899554883291,29.76757277302893]}},{"type":"Feature","properties":{"resourceCoords":[6652.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.2420379749318,29.767706596240036]}},{"type":"Feature","properties":{"resourceCoords":[6652.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.24186123742336,29.760684310367726]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.24881881132447,29.76055048715662]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1223/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1223","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"33"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1223/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1223/info.json","type":"ImageService2","height":7680,"width":6548},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1000.0,107.5 6537.2,125.1 6536.0,615.4 5481.7,612.4 5473.2,7652.5 953.3,7680.0 1000.0,107.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1223/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2460.0,3408.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2420019,29.7645582]}},{"type":"Feature","properties":{"resourceCoords":[3956.0,1036.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2404694,29.7667642]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1224/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1224","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1224/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1224/info.json","type":"ImageService2","height":7680,"width":6664},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"397.5,631.1 1461.4,634.7 1462.7,143.8 1649.6,141.9 1650.3,0.0 6664.0,0.0 6664.0,164.1 6664.0,176.1 6664.0,7680.0 387.0,7680.0 397.5,631.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1224/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.23929418772143,29.767752841971053]}},{"type":"Feature","properties":{"resourceCoords":[6664.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.23230342490322,29.767879898815195]}},{"type":"Feature","properties":{"resourceCoords":[6664.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.23213592545711,29.760836833437427]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.23912668827532,29.760709776593284]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1225/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1225","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1225/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1225/info.json","type":"ImageService2","height":7680,"width":6548},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"676.9,6971.6 657.0,0.0 6548.0,0.0 6548.0,613.4 6386.9,608.0 6323.6,4861.9 6120.4,4868.3 6112.5,6994.6 676.9,6971.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1225/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.24428225461929,29.773899142180724]}},{"type":"Feature","properties":{"resourceCoords":[6548.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.23746150988966,29.77402884634358]}},{"type":"Feature","properties":{"resourceCoords":[6548.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.23728748061048,29.767035766476226]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.24410822534011,29.76690606231337]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1226/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1226","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1226/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1226/info.json","type":"ImageService2","height":7680,"width":6664},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"449.7,7448.5 523.2,3819.8 -0.0,3821.0 -0.0,2945.4 530.0,2933.4 575.8,1009.4 -0.0,950.5 -0.0,-0.0 880.7,0.0 812.8,95.4 867.4,194.3 880.7,0.0 6664.0,0.0 6664.0,7680.0 4582.9,7680.0 4584.8,7411.1 449.7,7448.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1226/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20293359493922,29.774562732438707]}},{"type":"Feature","properties":{"resourceCoords":[6664.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.19594359927295,29.774826188446013]}},{"type":"Feature","properties":{"resourceCoords":[6664.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.19559626072649,29.767784375363505]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20258625639276,29.767520919356198]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1227/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1227","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1227/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1227/info.json","type":"ImageService2","height":7680,"width":6548},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 5733.7,0.0 5782.1,7397.6 1392.1,7347.1 1465.4,6331.4 1286.1,6327.6 1244.1,7680.0 -0.0,7680.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1227/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.21513998605414,29.773836351823835]}},{"type":"Feature","properties":{"resourceCoords":[6548.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20825237906958,29.7742215682692]}},{"type":"Feature","properties":{"resourceCoords":[6548.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20773551871778,29.767159936670474]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.21462312570235,29.766774720225108]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1228/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1228","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1228/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1228/info.json","type":"ImageService2","height":7680,"width":6664},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"760.9,7442.1 -0.0,7428.4 -0.0,-0.0 6664.0,0.0 6664.0,91.4 5836.7,68.8 5811.0,1009.1 6379.0,1083.0 6281.7,2985.4 5757.0,2982.9 5733.3,3849.2 6251.0,3862.2 6080.1,7450.3 4157.4,7402.6 3988.8,7475.4 3180.9,7479.3 3181.3,7467.3 2629.9,7461.8 2622.5,7680.0 990.1,7680.0 760.9,7442.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1228/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20911467779045,29.774245449321832]}},{"type":"Feature","properties":{"resourceCoords":[6664.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.2020633329954,29.774680319605746]}},{"type":"Feature","properties":{"resourceCoords":[6664.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20149000435833,29.767576686678495]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20854134915339,29.76714181639458]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1229/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1229","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1229/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1229/info.json","type":"ImageService2","height":7680,"width":6568},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2912.9,7680.0 748.9,7680.0 715.4,6296.3 635.5,6127.2 544.4,-0.0 5937.4,-0.0 5896.7,5003.5 5521.4,5339.1 5525.2,5939.1 6568.0,5932.4 6568.0,7081.1 4515.1,7094.3 4515.1,7094.3 3602.1,7100.2 2912.9,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1229/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.19781015175043,29.768450014338196]}},{"type":"Feature","properties":{"resourceCoords":[6568.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.19756227006793,29.762474363591732]}},{"type":"Feature","properties":{"resourceCoords":[6568.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.2055552153312,29.762220979727573]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.2058030970137,29.768196630474037]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1230/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1230","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1230/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1230/info.json","type":"ImageService2","height":7680,"width":6672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6672.0,7680.0 -0.0,7666.8 -0.0,7488.6 1010.0,7540.0 960.3,2384.8 3700.5,-0.0 6672.0,-0.0 6672.0,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1230/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20523260383044,29.768397253791022]}},{"type":"Feature","properties":{"resourceCoords":[6672.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20493058002006,29.762213218627185]}},{"type":"Feature","properties":{"resourceCoords":[6672.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.21307330463169,29.761909302497116]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.21337532844207,29.768093337660954]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1235/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1235","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1235/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1235/info.json","type":"ImageService2","height":7680,"width":6568},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6568.0,7680.0 -0.0,7680.0 -0.0,7076.4 379.7,6741.2 431.2,3948.9 452.6,1707.9 -0.0,1705.1 -0.0,0.0 6568.0,-0.0 6568.0,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1235/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.19583958199799,29.763523216402774]}},{"type":"Feature","properties":{"resourceCoords":[6568.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.19554993748288,29.75758453914585]}},{"type":"Feature","properties":{"resourceCoords":[6568.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20349303567245,29.75728845084122]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20378268018756,29.763227128098144]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1236/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1236","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1236/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1236/info.json","type":"ImageService2","height":7680,"width":6672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 6672.0,0.0 6672.0,6989.9 -0.0,6949.4 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1236/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.25056006910185,29.773790133380263]}},{"type":"Feature","properties":{"resourceCoords":[6672.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.24359864679235,29.77393985005405]}},{"type":"Feature","properties":{"resourceCoords":[6672.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.24340149952798,29.76693517875661]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.25036292183748,29.766785462082826]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1237/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1237","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1237/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1237/info.json","type":"ImageService2","height":7680,"width":6572},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"203.0,4726.7 250.5,476.6 411.4,481.3 409.6,0.0 6572.0,0.0 6572.0,7680.0 5235.5,7680.0 5232.8,6701.7 188.3,6715.6 188.0,6858.4 -0.0,6858.3 -0.0,4733.8 203.0,4726.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1237/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.23788562849298,29.77390229511809]}},{"type":"Feature","properties":{"resourceCoords":[6572.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.2310330284924,29.774010316682645]}},{"type":"Feature","properties":{"resourceCoords":[6572.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.23088862094701,29.767010232067477]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.23774122094758,29.766902210502924]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1301/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1301","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1301/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1301/info.json","type":"ImageService2","height":7680,"width":6572},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7680.0 -0.0,327.3 1787.8,345.7 1793.0,-0.0 1911.7,-0.0 1909.1,501.2 6162.6,543.8 6572.0,465.1 6572.0,7680.0 -0.0,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1301/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.26261924775193,29.6818134444305]}},{"type":"Feature","properties":{"resourceCoords":[6572.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.25807210469709,29.677300331513486]}},{"type":"Feature","properties":{"resourceCoords":[6572.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.26409981358375,29.672651006807527]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.26864695663859,29.67716411972454]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1302/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1302","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1302/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1302/info.json","type":"ImageService2","height":7680,"width":6672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7680.0 -0.0,0.0 6322.8,-0.0 6252.1,7336.7 6135.2,7337.9 6133.6,7680.0 -0.0,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1302/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.2597445531695,29.689315189976675]}},{"type":"Feature","properties":{"resourceCoords":[6672.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.25513360190732,29.68464262021334]}},{"type":"Feature","properties":{"resourceCoords":[6672.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.26128119922508,29.679999057894126]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.26589215048726,29.684671627657462]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1303/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1303","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1303/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1303/info.json","type":"ImageService2","height":7680,"width":6572},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6572.0,7680.0 5193.5,7680.0 5192.3,7596.2 4834.4,7680.0 591.3,7680.0 611.7,-0.0 6572.0,-0.0 6572.0,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1303/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.25589233449183,29.685258120484846]}},{"type":"Feature","properties":{"resourceCoords":[6572.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.25136505765005,29.68062428434917]}},{"type":"Feature","properties":{"resourceCoords":[6572.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.25755421281016,29.675995428200956]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.26208148965195,29.68062926433663]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1305__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1305 [2]","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"28"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6560.0"},{"label":"split_canvas_h","value":"7680.0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1305__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1305/info.json","type":"ImageService2","height":7680,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6393.8,7680.0 6318.7,2581.9 6560.0,2580.3 6560.0,0.0 -0.0,-0.0 0.0,6306.4 1787.6,6326.8 1782.4,7680.0 6393.8,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1305__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2076.0,3728.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2405229,29.6621867]}},{"type":"Feature","properties":{"resourceCoords":[3460.0,2636.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.240099,29.6637423]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1306/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1306","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"19"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1306/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1306/info.json","type":"ImageService2","height":7680,"width":6672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"517.0,6695.9 555.7,1657.1 794.2,1660.9 831.4,0.0 6672.0,0.0 6672.0,7680.0 -0.0,7680.0 -0.0,6684.3 517.0,6695.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1306/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4068.0,5968.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2320217,29.6644084]}},{"type":"Feature","properties":{"resourceCoords":[2476.0,1664.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2362261,29.6665125]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1307/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1307","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1307/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1307/info.json","type":"ImageService2","height":7680,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7680.0 -0.0,-0.0 6560.0,0.0 6560.0,7680.0 -0.0,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1307/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.28916936559494,29.652349730507808]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.28228421207187,29.65244760063105]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.28215329463637,29.645392860259037]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.28903844815945,29.645294990135795]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1308/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1308","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"13"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1308/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1308/info.json","type":"ImageService2","height":7680,"width":6672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4863.5,4916.7 5107.7,7680.0 4184.1,7680.0 4127.2,6885.4 1340.0,6850.0 1412.5,862.4 3600.0,876.3 3516.5,-0.0 4433.0,-0.0 4504.3,870.7 5403.8,883.5 5371.4,4930.2 4863.5,4916.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1308/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1340.0,6848.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.211656,29.7125817]}},{"type":"Feature","properties":{"resourceCoords":[1388.0,2872.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2095708,29.7126009]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1309/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1309","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1309/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1309/info.json","type":"ImageService2","height":7680,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6560.0,6835.4 6560.0,7680.0 -0.0,7680.0 -0.0,-0.0 4990.0,0.0 5610.0,1396.9 4827.6,1304.8 4073.0,2120.5 2413.9,3236.0 5363.8,6143.2 5795.6,6594.2 6136.5,7103.0 6560.0,6835.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1309/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.250919,29.7063383]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.2440396,29.7069555]}},{"type":"Feature","properties":{"resourceCoords":[6560.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.2432078,29.6999599]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.2500872,29.6993427]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1310/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1310","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1310/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1310/info.json","type":"ImageService2","height":7680,"width":6672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1342.6,7371.2 1285.4,5342.5 995.1,4254.3 1497.7,3629.4 -0.0,3418.0 -0.0,0.0 6672.0,-0.0 6672.0,6237.6 6051.4,6258.3 1342.6,7371.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1310/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.2428774763159,29.708686757046785]}},{"type":"Feature","properties":{"resourceCoords":[6672.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.23862402589138,29.703923927978398]}},{"type":"Feature","properties":{"resourceCoords":[6672.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.24489159345632,29.69964122740826]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.24914504388083,29.704404056476648]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1311/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1311","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1311/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1311/info.json","type":"ImageService2","height":7680,"width":6560},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7680.0 -0.0,-0.0 6560.0,0.0 6560.0,3415.5 6259.6,4085.3 6163.3,4572.5 6199.2,6655.4 6052.2,6663.7 6133.6,7588.8 6264.9,7590.6 6252.5,7680.0 -0.0,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1311/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3736.0,2620.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2226344,29.7142576]}},{"type":"Feature","properties":{"resourceCoords":[2740.0,4548.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.223647,29.7124805]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1312/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1312","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"16"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1312/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1312/info.json","type":"ImageService2","height":7680,"width":6672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"470.2,7680.0 378.3,6778.8 521.6,6768.7 458.6,4737.8 546.0,4261.4 830.0,3604.1 784.2,273.1 -0.0,283.9 -0.0,-0.0 4150.7,0.0 4165.9,1550.4 4832.3,1373.0 4861.3,2765.1 6672.0,2759.4 6672.0,4704.0 4862.1,4713.1 4873.3,6384.8 6672.0,6200.4 6672.0,6660.5 4287.7,6926.8 4292.0,7680.0 470.2,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1312/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2104.0,3700.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.21827,29.713492]}},{"type":"Feature","properties":{"resourceCoords":[5800.0,2764.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2142822,29.7143826]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1313/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1313","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1313/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1313/info.json","type":"ImageService2","height":7916,"width":6764},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3833.3,6981.4 2584.9,7102.0 2589.7,6621.8 694.7,6795.3 700.1,5050.4 2605.1,5059.8 2625.1,3030.1 719.3,3017.1 703.2,1563.7 -0.0,1741.9 -0.0,-0.0 6764.0,0.0 6764.0,67.6 5779.3,84.4 5831.5,3060.7 6269.4,3110.3 6273.3,5075.5 4240.4,5068.5 4234.9,6481.0 3824.0,6513.8 3833.3,6981.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1313/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.21607803660054,29.717075710381764]}},{"type":"Feature","properties":{"resourceCoords":[6764.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20914011218933,29.71716041454182]}},{"type":"Feature","properties":{"resourceCoords":[6764.0,7916.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20902677396425,29.710058715392666]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7916.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.21596469837546,29.70997401123261]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1314/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1314","metadata":[{"label":"streets","value":"15"},{"label":"intersections","value":"36"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1314/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1314/info.json","type":"ImageService2","height":7680,"width":6672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,2922.1 -0.0,-0.0 6672.0,0.0 6672.0,7680.0 6614.0,7680.0 6622.7,7018.5 1367.6,6913.0 395.5,4906.9 -0.0,2922.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1314/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3348.0,4968.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2064592,29.7126294]}},{"type":"Feature","properties":{"resourceCoords":[1436.0,2960.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.208539,29.7144074]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1315/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1315","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"25"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1315/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1315/info.json","type":"ImageService2","height":7680,"width":6604},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6019.1,6873.3 -0.0,6864.4 -0.0,1188.6 5033.6,666.8 5030.2,919.6 6037.3,916.0 6019.1,6873.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1315/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[972.0,4220.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.214843,29.707717]}},{"type":"Feature","properties":{"resourceCoords":[5036.0,6868.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2105346,29.7053337]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1316/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1316","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1316/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1316/info.json","type":"ImageService2","height":7680,"width":6672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"348.4,6861.5 415.9,961.3 6672.0,1001.2 6672.0,2974.3 6306.5,2971.4 6281.7,6133.5 6672.0,6139.7 6672.0,7680.0 6264.7,7679.1 6278.7,6906.3 348.4,6861.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1316/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.2099981648108,29.711661084781554]}},{"type":"Feature","properties":{"resourceCoords":[6672.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20296192263963,29.711773224229482]}},{"type":"Feature","properties":{"resourceCoords":[6672.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.2028143485686,29.704688882554237]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20985059073976,29.70457674310631]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1317/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1317","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1317/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1317/info.json","type":"ImageService2","height":7680,"width":6604},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7680.0 -0.0,-0.0 267.3,0.0 265.0,261.8 6275.1,325.7 6230.6,7414.6 6604.0,7416.9 6604.0,7680.0 -0.0,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1317/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.21612441485057,29.705528950043153]}},{"type":"Feature","properties":{"resourceCoords":[6604.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.2091584087463,29.705643867892157]}},{"type":"Feature","properties":{"resourceCoords":[6604.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20900563062125,29.698557585192223]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.21597163672551,29.69844266734322]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1318/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1318","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"38"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1318/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1318/info.json","type":"ImageService2","height":7680,"width":6672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"332.6,7439.1 341.2,295.2 6266.1,312.5 6255.5,1091.1 6662.4,1090.2 6672.0,1892.5 6249.3,1889.3 6248.2,7680.0 4277.3,7680.0 4279.0,7433.1 332.6,7439.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1318/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3300.0,2284.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2063467,29.7035536]}},{"type":"Feature","properties":{"resourceCoords":[2312.0,2284.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2073918,29.7035412]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1319/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1319","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1319/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1319/info.json","type":"ImageService2","height":7680,"width":6604},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,962.9 4589.6,925.3 4587.4,657.8 6231.5,654.8 6229.2,2223.8 6604.0,2225.8 6604.0,7221.0 -0.0,7271.5 -0.0,962.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1319/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.21377808651789,29.699353055623128]}},{"type":"Feature","properties":{"resourceCoords":[6604.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20692573338613,29.69941691565335]}},{"type":"Feature","properties":{"resourceCoords":[6604.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20684083953364,29.69244582188902]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.2136931926654,29.692381961858796]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1320/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1320","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1320/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1320/info.json","type":"ImageService2","height":7680,"width":6656},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7680.0 -0.0,36.0 128.6,37.0 129.2,-0.0 6656.0,-0.0 6656.0,7680.0 -0.0,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1320/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20680829007064,29.69286302617587]}},{"type":"Feature","properties":{"resourceCoords":[6656.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20668098874124,29.686777902729723]}},{"type":"Feature","properties":{"resourceCoords":[6656.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.2147067022761,29.686649399367397]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.2148340036055,29.692734522813545]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1321/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1321","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1321/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1321/info.json","type":"ImageService2","height":7680,"width":6604},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"882.4,2877.8 829.8,0.0 6604.0,0.0 6604.0,5175.6 4431.4,5168.0 4428.9,5843.8 2435.4,5797.4 2447.6,7393.8 1512.2,7383.4 1511.2,7680.0 848.1,7680.0 846.6,7376.0 455.0,7371.7 464.2,4199.6 830.8,4200.6 824.3,2878.9 882.4,2877.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1321/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20383683990453,29.712882495244603]}},{"type":"Feature","properties":{"resourceCoords":[6604.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.1968935348514,29.712963010906943]}},{"type":"Feature","properties":{"resourceCoords":[6604.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.19678648507771,29.705900336693166]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20372979013084,29.705819821030826]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1322__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1322 [1]","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"12"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6656.0"},{"label":"split_canvas_h","value":"7680.0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1322__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1322/info.json","type":"ImageService2","height":7680,"width":6656},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"429.1,7008.0 1315.1,7019.6 1309.1,7680.0 2433.9,7680.0 2438.7,7034.0 4441.7,7033.2 4477.5,3029.7 2429.6,3005.9 2445.0,629.1 1509.6,621.1 1512.6,0.0 869.5,0.0 869.0,615.6 444.0,612.0 429.1,7008.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1322__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[444.0,5404.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2031663,29.6995874]}},{"type":"Feature","properties":{"resourceCoords":[444.0,612.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.203239,29.703952]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1322__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1322 [3]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"split_canvas_x","value":"4862.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1794.0"},{"label":"split_canvas_h","value":"6578.0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1322__3/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1322/info.json","type":"ImageService2","height":7680,"width":6656},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5880.5,-0.0 5876.9,884.3 5304.5,880.1 5320.8,2857.5 5073.4,2857.8 5097.7,4821.5 6656.0,4815.7 6656.0,-0.0 5880.5,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1322__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5097.7,4821.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.207305,29.698819]}},{"type":"Feature","properties":{"resourceCoords":[5876.9,884.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.2031576,29.6981263]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1323/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1323","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1323/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1323/info.json","type":"ImageService2","height":7680,"width":6596},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"936.2,6969.4 940.3,4600.0 -0.0,4596.4 -0.0,2239.9 941.5,2247.0 923.6,640.4 2930.2,680.2 2930.3,0.0 6596.0,0.0 6596.0,3556.6 5660.2,3549.5 5682.3,6846.3 4434.3,6853.8 3887.5,6959.9 936.2,6969.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1323/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20216684957036,29.708157740504873]}},{"type":"Feature","properties":{"resourceCoords":[6596.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.19527645412387,29.70821663430004]}},{"type":"Feature","properties":{"resourceCoords":[6596.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.19519806043945,29.701198951105543]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20208845588594,29.701140057310376]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1325/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1325","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1325/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1325/info.json","type":"ImageService2","height":7680,"width":6596},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4335.4,7680.0 4327.8,7455.1 309.2,7484.0 296.0,3472.2 1193.1,3441.5 1741.9,3330.7 2996.4,3313.8 2949.3,0.0 5328.4,0.0 4903.3,101.6 4919.0,4226.1 4966.3,4589.5 5276.8,5152.3 5659.2,5603.0 5735.9,5866.6 5361.6,5922.5 5273.6,6095.1 5321.3,6285.5 5435.6,6377.0 5744.2,6377.7 5748.7,6972.3 5602.7,7051.5 6252.8,7680.0 4335.4,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1325/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.19928279333486,29.704958755343664]}},{"type":"Feature","properties":{"resourceCoords":[6596.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.19242820535734,29.70497238796814]}},{"type":"Feature","properties":{"resourceCoords":[6596.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.19241005951187,29.69799095191265]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.19926464748939,29.697977319288174]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1326/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1326","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"8"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1326/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1326/info.json","type":"ImageService2","height":7680,"width":6656},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5684.6,7523.4 5269.5,7103.9 5051.5,7315.4 4907.5,7328.9 4742.0,7226.3 4684.5,7043.3 4909.5,6746.4 4672.8,6611.7 4091.1,6554.2 3482.4,6367.5 3197.3,6141.8 328.9,3221.4 506.8,2974.3 557.0,2861.9 558.0,2857.2 -0.0,3401.2 -0.0,0.0 6656.0,-0.0 6656.0,7680.0 5627.8,7680.0 5684.6,7523.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1326/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5116.0,3384.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.190679,29.701716]}},{"type":"Feature","properties":{"resourceCoords":[3308.0,1160.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.1904136,29.7043311]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1328/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Houston, Texas | 1950 | sanborn08580_028 p1328","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-24T16:54:31Z","modified":"2026-09-24T16:54:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1328/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1328/info.json","type":"ImageService2","height":7680,"width":6656},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7680.0 -0.0,856.0 640.2,869.9 658.9,227.6 6656.0,377.1 6656.0,7680.0 -0.0,7680.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034hm:g4034hm_g08580195012:08580_12_1950-1328/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.20174485920826,29.69831551486263]}},{"type":"Feature","properties":{"resourceCoords":[6656.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.19478196232667,29.698535779702983]}},{"type":"Feature","properties":{"resourceCoords":[6656.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.1944914383407,29.691507501215227]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7680.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.2014543352223,29.691287236374876]}}]}}]}