{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn08451_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Calvert, Texas | 1911 | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"6"},{"label":"placed","value":"5"},{"label":"unplaced","value":"1"},{"label":"fit sources","value":"georef 4, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 2 panels"},{"label":"unplaced pages","value":"p1__2 (tier 1, 30.98322,-96.67663 +/-182m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084511911:08451_1911-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Calvert, Texas | 1911 | sanborn08451_006 p1 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3464.8"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4187.2"}],"created":"2026-09-22T02:49:38Z","modified":"2026-09-22T02:49:38Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084511911:08451_1911-0001__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084511911:08451_1911-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,3464.8 4401.6,3488.4 0.0,3542.8 -0.0,5190.2 396.3,5233.4 155.5,7652.0 4156.0,7652.0 5320.0,7652.0 6452.0,7652.0 6452.0,3464.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084511911:08451_1911-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2184.0,7384.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.6721998,30.9744041]}},{"type":"Feature","properties":{"resourceCoords":[6120.0,5432.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.669911,30.973626]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084511911:08451_1911-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Calvert, Texas | 1911 | sanborn08451_006 p2","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"15"}],"created":"2026-09-22T02:49:38Z","modified":"2026-09-22T02:49:38Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084511911:08451_1911-0002/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084511911:08451_1911-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 0.0,0.0 5917.3,128.5 6055.4,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084511911:08451_1911-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4072.0,2240.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.6754587,30.9815357]}},{"type":"Feature","properties":{"resourceCoords":[4072.0,6520.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.6772612,30.9804536]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084511911:08451_1911-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Calvert, Texas | 1911 | sanborn08451_006 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T02:49:38Z","modified":"2026-09-22T02:49:38Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084511911:08451_1911-0003/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084511911:08451_1911-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"126.0,7642.7 -0.0,7641.3 -0.0,202.5 6238.8,255.5 6206.2,7652.0 125.9,7652.0 126.0,7642.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084511911:08451_1911-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.67394001131814,30.9814565449994]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.67197908231842,30.97911426577452]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.67519648692743,30.977106301131602]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.67715741592716,30.979448580356483]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084511911:08451_1911-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Calvert, Texas | 1911 | sanborn08451_006 p4","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"18"}],"created":"2026-09-22T02:49:38Z","modified":"2026-09-22T02:49:38Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084511911:08451_1911-0004/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084511911:08451_1911-0004/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"143.1,212.5 435.2,215.7 437.1,-0.0 6452.0,-0.0 6452.0,2507.4 5818.2,2570.4 5999.9,4400.0 6427.0,4411.3 6452.0,7652.0 76.8,7652.0 143.1,212.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084511911:08451_1911-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4296.0,6468.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.6735036,30.9759578]}},{"type":"Feature","properties":{"resourceCoords":[2208.0,2280.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.6723834,30.9778274]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084511911:08451_1911-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Calvert, Texas | 1911 | sanborn08451_006 p5","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"16"}],"created":"2026-09-22T02:49:38Z","modified":"2026-09-22T02:49:38Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084511911:08451_1911-0005/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084511911:08451_1911-0005/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"250.8,6923.2 -0.0,6918.4 0.0,-0.0 6452.0,-0.0 6452.0,6987.3 250.8,6927.3 250.8,6923.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd403m:g4034m:g4034cm:g4034cm_g084511911:08451_1911-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2236.0,5004.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.6725204,30.9811175]}},{"type":"Feature","properties":{"resourceCoords":[2236.0,6980.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.6733776,30.9805877]}}]}}]}