{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn00016_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Boaz, Alabama | 1929 | mapsnap generated fit (2026-10-18)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-18"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"98"},{"label":"placed","value":"5"},{"label":"unplaced","value":"93"},{"label":"fit sources","value":"georef 3, snap:0 2"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"3 sheet(s) cut into 6 panels"},{"label":"unplaced pages","value":"p401 (tier 1, 34.32671,-86.49186 +/-316m); p402 (tier 1, 34.32654,-86.48354 +/-360m); p403 (tier 4, 34.32377,-86.50269 +/-1477m); p404 (tier 1, 34.52551,-86.25340 +/-319m); p405 (tier 4, 34.32377,-86.50269 +/-1477m); p406 (tier 4, 34.32377,-86.50269 +/-1477m); p407 (tier 1, 34.52908,-86.24977 +/-369m); p408 (tier 1, 34.52548,-86.25352 +/-336m); p409 (tier 1, 34.52546,-86.25604 +/-306m); p410 (tier 4, 34.32377,-86.50269 +/-1477m); p411 (tier 1, 34.52382,-86.25145 +/-321m); p412 (tier 1, 34.32317,-86.50714 +/-328m); p413 (tier 1, 34.32338,-86.48981 +/-330m); p414 (tier 4, 34.32377,-86.50269 +/-1477m); p415 (tier 4, 34.32377,-86.50269 +/-1477m); p417 (tier 2, 34.32459,-86.48947 +/-100m); p418 (tier 4, 34.32377,-86.50269 +/-1477m); p419 (tier 4, 34.32377,-86.50269 +/-1477m); p420 (tier 1, 34.31169,-86.50201 +/-304m); p421 (tier 4, 34.32377,-86.50269 +/-1477m); p422 (tier 4, 34.32377,-86.50269 +/-1477m); p423 (tier 1, 34.32182,-86.51207 +/-311m); p424 (tier 4, 34.32377,-86.50269 +/-1477m); p425 (tier 1, 34.52521,-86.25498 +/-338m); p426 (tier 1, 34.32459,-86.50106 +/-346m); p427 (tier 1, 34.32440,-86.49190 +/-321m); p428 (tier 1, 34.32363,-86.49197 +/-329m); p429 (tier 1, 34.32121,-86.51282 +/-282m); p431 (tier 4, 34.32377,-86.50269 +/-1477m); p432 (tier 1, 34.31691,-86.51510 +/-344m); p433 (tier 4, 34.32377,-86.50269 +/-1477m); p434 (tier 4, 34.32377,-86.50269 +/-1477m); p435 (tier 1, 34.31971,-86.51291 +/-313m); p436 (tier 1, 34.31988,-86.51462 +/-328m); p437 (tier 1, 34.52313,-86.25320 +/-353m); p438 (tier 1, 34.52552,-86.24941 +/-324m); p439 (tier 1, 34.31970,-86.51202 +/-331m); p440 (tier 2, 34.31989,-86.51067 +/-100m); p441 (tier 1, 34.31967,-86.51050 +/-328m); p443 (tier 1, 34.32099,-86.51168 +/-314m); p444 (tier 1, 34.33430,-86.50848 +/-310m); p445__1 (tier 1, 34.32019,-86.51206 +/-318m); p445__2 (tier 1, 34.32107,-86.51208 +/-140m); p446 (tier 1, 34.32177,-86.51150 +/-322m); p447 (tier 1, 34.31699,-86.51284 +/-351m); p448__1 (tier 1, 34.32661,-86.50716 +/-307m); p448__2 (tier 1, 34.31996,-86.48901 +/-129m); p449 (tier 1, 34.53279,-86.25058 +/-309m); p450 (tier 1, 34.31905,-86.49873 +/-304m); p451 (tier 1, 34.52693,-86.25464 +/-316m); p452 (tier 1, 34.52601,-86.25409 +/-317m); p453 (tier 4, 34.32377,-86.50269 +/-1477m); p454 (tier 1, 34.32057,-86.51273 +/-302m); p455 (tier 1, 34.33593,-86.50535 +/-338m); p456 (tier 4, 34.32377,-86.50269 +/-1477m); p457 (tier 4, 34.32377,-86.50269 +/-1477m); p458 (tier 1, 34.32001,-86.51428 +/-274m); p459 (tier 4, 34.32377,-86.50269 +/-1477m); p460 (tier 4, 34.32377,-86.50269 +/-1477m); p461 (tier 4, 34.32377,-86.50269 +/-1477m); p462 (tier 4, 34.32377,-86.50269 +/-1477m); p463 (tier 4, 34.32377,-86.50269 +/-1477m); p464 (tier 4, 34.32377,-86.50269 +/-1477m); p465 (tier 1, 34.32010,-86.51278 +/-294m); p466 (tier 1, 34.32076,-86.51491 +/-295m); p467 (tier 4, 34.32377,-86.50269 +/-1477m); p468 (tier 4, 34.32377,-86.50269 +/-1477m); p469 (tier 4, 34.32377,-86.50269 +/-1477m); p470 (tier 4, 34.32377,-86.50269 +/-1477m); p471 (tier 4, 34.32377,-86.50269 +/-1477m); p472__2 (tier 1, 34.31963,-86.50954 +/-167m); p473 (tier 2, 34.32847,-86.48843 +/-100m); p475 (tier 1, 34.32367,-86.50316 +/-362m); p476 (tier 2, 34.32975,-86.48646 +/-100m); p477 (tier 1, 34.32765,-86.49241 +/-342m); p478 (tier 4, 34.32377,-86.50269 +/-1477m); p479 (tier 1, 34.32569,-86.49028 +/-312m); p480 (tier 1, 34.32702,-86.49195 +/-355m); p481 (tier 1, 34.32930,-86.48464 +/-311m); p482 (tier 1, 34.32537,-86.48856 +/-336m); p483 (tier 4, 34.32377,-86.50269 +/-1477m); p484 (tier 4, 34.32377,-86.50269 +/-1477m); p485 (tier 4, 34.32377,-86.50269 +/-1477m); p486 (tier 4, 34.32377,-86.50269 +/-1477m); p487 (tier 4, 34.32377,-86.50269 +/-1477m); p488 (tier 4, 34.32377,-86.50269 +/-1477m); p489 (tier 4, 34.32377,-86.50269 +/-1477m); p490 (tier 4, 34.32377,-86.50269 +/-1477m); p491 (tier 4, 34.32377,-86.50269 +/-1477m); p492 (tier 4, 34.32377,-86.50269 +/-1477m); p493 (tier 4, 34.32377,-86.50269 +/-1477m); p494 (tier 4, 34.32377,-86.50269 +/-1477m); p495 (tier 4, 34.32377,-86.50269 +/-1477m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g00015192904:00015_04_1929-0416/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boaz, Alabama | 1929 | sanborn00016_001 p416","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.19"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T06:08:27Z","modified":"2026-10-18T06:08:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g00015192904:00015_04_1929-0416/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g00015192904:00015_04_1929-0416","type":"ImageService3","width":1678,"height":2048},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"64.8,169.4 285.6,152.8 446.8,148.2 548.4,167.0 773.9,161.5 836.0,158.7 865.0,207.2 906.8,221.3 1091.1,212.9 1444.6,196.8 1563.2,110.7 1595.5,177.8 1591.9,1527.1 1506.5,1533.5 998.4,1871.8 331.1,1884.8 88.3,1835.5 79.8,241.8 64.8,227.7 64.8,169.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g00015192904:00015_04_1929-0416/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.49053096232431,34.328979286234926]}},{"type":"Feature","properties":{"resourceCoords":[1678.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.48606001190704,34.32870398320299]}},{"type":"Feature","properties":{"resourceCoords":[1678.0,2048.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.4864669695663,34.32419853902804]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2048.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.49093791998357,34.32447384205997]}},{"type":"Feature","properties":{"resourceCoords":[64.0,184.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.490397,34.328564]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g00015192904:00015_04_1929-0430/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boaz, Alabama | 1929 | sanborn00016_001 p430","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.46"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T06:08:27Z","modified":"2026-10-18T06:08:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g00015192904:00015_04_1929-0430/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g00015192904:00015_04_1929-0430","type":"ImageService3","width":1705,"height":2046},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1396.8,1045.9 1397.0,1099.2 911.4,1439.5 910.0,1276.3 652.7,1587.8 553.8,1022.0 376.3,1023.3 374.7,905.1 171.4,906.4 168.2,805.5 85.1,720.9 79.6,546.6 170.7,101.3 1141.1,70.7 1620.5,167.7 1627.0,863.5 1396.8,1045.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g00015192904:00015_04_1929-0430/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.50808221843766,34.32224067875706]}},{"type":"Feature","properties":{"resourceCoords":[1705.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.50822333294705,34.318523126245104]}},{"type":"Feature","properties":{"resourceCoords":[1705.0,2046.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.51358697572219,34.318663968000244]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2046.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.51344586121279,34.3223815205122]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g00015192904:00015_04_1929-0442/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boaz, Alabama | 1929 | sanborn00016_001 p442","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.09"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T06:08:27Z","modified":"2026-10-18T06:08:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g00015192904:00015_04_1929-0442/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g00015192904:00015_04_1929-0442","type":"ImageService3","width":1674,"height":2039},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1037.4,207.4 1062.0,227.0 1065.0,327.8 1260.2,1085.2 1312.7,1085.0 1342.3,1258.5 1072.9,1579.2 1072.2,1410.5 564.9,1759.9 564.9,1815.0 324.2,2002.3 323.6,1858.8 110.9,1851.6 57.7,1788.6 36.2,977.8 112.7,222.4 504.7,192.7 907.5,85.3 1017.2,95.3 1126.4,204.5 1037.4,207.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g00015192904:00015_04_1929-0442/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1062.0,227.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.514934,34.320397]}},{"type":"Feature","properties":{"resourceCoords":[1062.0,1843.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.510835,34.320307]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g00015192904:00015_04_1929-0472__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boaz, Alabama | 1929 | sanborn00016_001 p472 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.12"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6784.0"},{"label":"split_canvas_h","value":"8208.0"}],"created":"2026-10-18T06:08:27Z","modified":"2026-10-18T06:08:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g00015192904:00015_04_1929-0472__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g00015192904:00015_04_1929-0472","type":"ImageService3","width":1696,"height":2052},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"416.0,1819.3 602.6,1818.1 604.1,1942.3 817.8,1941.2 814.9,1844.5 1077.3,1286.3 1077.4,1076.7 1082.0,1075.0 1082.0,1074.0 1084.7,1074.0 1251.0,1012.4 1432.2,771.0 1458.5,567.2 1606.0,287.6 1556.9,171.2 567.7,149.2 566.3,136.4 420.3,141.2 366.7,168.5 99.9,163.6 89.8,153.5 1.0,156.8 1.0,157.6 24.9,176.6 28.3,279.1 228.8,1048.5 281.8,1048.2 416.0,1819.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g00015192904:00015_04_1929-0472__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.51537629391375,34.32035657298637]}},{"type":"Feature","properties":{"resourceCoords":[1696.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.51524642505852,34.32387459149894]}},{"type":"Feature","properties":{"resourceCoords":[1696.0,2052.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.51012900431704,34.32374389768713]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2052.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.51025887317225,34.32022587917456]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g00015192904:00015_04_1929-0474/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boaz, Alabama | 1929 | sanborn00016_001 p474","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.08"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T06:08:27Z","modified":"2026-10-18T06:08:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g00015192904:00015_04_1929-0474/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g00015192904:00015_04_1929-0474","type":"ImageService3","width":1694,"height":2059},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"99.4,1988.6 260.6,1919.6 621.8,1909.1 993.0,1981.2 1618.2,1978.1 1593.9,103.1 116.3,63.1 39.3,138.5 110.9,141.8 119.0,414.4 115.7,613.0 86.9,736.9 82.1,963.0 81.0,1014.7 81.0,1091.2 19.6,1124.2 1.0,1172.3 1.0,1839.5 99.4,1988.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g00015192904:00015_04_1929-0474/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[93.0,140.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.490397,34.328564]}},{"type":"Feature","properties":{"resourceCoords":[93.0,698.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.489187,34.328535]}}]}}]}