{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn09331_018.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Spokane, Washington | 1952 | mapsnap generated fit (2026-10-17)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-17"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"92"},{"label":"placed","value":"82"},{"label":"unplaced","value":"10"},{"label":"fit sources","value":"georef 50, georef-snap 31, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"6 sheet(s) cut into 12 panels"},{"label":"unplaced pages","value":"p271__1 (tier 1, 47.65959,-117.43537 +/-200m); p273__2 (tier 1, 47.65824,-117.44686 +/-138m); p274 (tier 2, 47.65640,-117.44854 +/-106m); p291__1 (tier 1, 47.65532,-117.44765 +/-203m); p303 (tier 1, 47.64887,-117.43728 +/-274m); p317 (tier 2, 47.64761,-117.42369 +/-200m); p338 (tier 1, 47.65123,-117.42136 +/-277m); p355 (tier 1, 47.64082,-117.41679 +/-271m); p358__1 (tier 1, 47.64124,-117.40898 +/-148m); p362__1 (tier 1, 47.64281,-117.40370 +/-102m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0271__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p271 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"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":"4352.0"},{"label":"split_canvas_h","value":"2840.0"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0271__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0271","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"990.4,654.6 987.4,652.3 1006.6,222.7 945.8,126.5 754.4,72.5 427.4,60.7 228.2,299.5 178.1,656.7 168.7,655.5 187.3,662.2 488.9,659.4 990.4,654.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0271__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[491.0,660.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.43731439472265,47.65899316283417]}},{"type":"Feature","properties":{"resourceCoords":[1000.0,660.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.43522416107209,47.65895999739039]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0272__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p272 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.85"},{"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":"4352.0"},{"label":"split_canvas_h","value":"5600.0"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0272__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0272","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"226.0,1137.6 239.6,1156.2 217.3,1207.3 199.7,1249.5 247.8,1250.0 286.8,1243.4 479.3,1243.8 536.0,1254.8 897.0,1250.0 903.2,1249.9 902.6,847.4 894.2,847.9 891.7,701.5 894.9,600.8 902.1,518.5 930.5,397.3 948.1,222.5 899.3,107.7 644.5,47.0 490.9,57.7 390.6,130.4 338.9,289.2 336.0,290.4 336.0,291.0 334.4,291.0 228.8,333.1 129.4,535.5 101.4,650.9 123.2,1023.9 161.1,1032.0 161.5,1065.0 185.9,1108.4 226.0,1137.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0272__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[897.0,1250.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4235234,47.6590236]}},{"type":"Feature","properties":{"resourceCoords":[165.0,1250.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4265769,47.6590379]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0272__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p272 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.84"},{"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":"1344.0"},{"label":"split_canvas_h","value":"1164.0"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0272__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0272","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"226.7,258.9 254.9,259.0 251.1,288.9 251.0,290.0 270.1,290.0 285.6,259.3 307.6,217.2 335.0,166.3 325.8,147.1 294.7,116.7 279.6,72.3 284.2,39.1 251.8,29.9 91.8,105.8 34.9,235.8 1.0,234.5 1.0,255.8 226.7,258.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0272__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-117.42787794478684,47.65974368788545]}},{"type":"Feature","properties":{"resourceCoords":[336.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-117.42648842840642,47.65976032742839]}},{"type":"Feature","properties":{"resourceCoords":[336.0,291.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-117.4264670241685,47.65895008922449]}},{"type":"Feature","properties":{"resourceCoords":[0.0,291.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-117.42785654054893,47.658933449681555]}},{"type":"Feature","properties":{"resourceCoords":[310.0,259.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4265769,47.6590379]}},{"type":"Feature","properties":{"resourceCoords":[310.0,259.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.425614,47.6590494]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0273__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p273 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.78"},{"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":"4352.0"},{"label":"split_canvas_h","value":"5600.0"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0273__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0273","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"304.8,1218.0 871.5,1217.8 885.0,1217.9 920.6,1179.6 946.6,1008.0 931.0,522.2 985.8,424.5 387.4,414.6 384.8,411.8 383.0,411.8 383.0,409.9 324.5,347.2 293.7,470.6 285.0,554.6 280.2,657.5 280.5,807.1 289.1,806.7 283.3,1218.0 304.8,1218.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0273__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[630.0,1218.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4220825,47.6590317]}},{"type":"Feature","properties":{"resourceCoords":[277.0,1218.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4235234,47.6590236]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0275/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p275","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0275/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0275","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"972.6,192.1 977.6,193.6 969.0,625.5 946.2,621.2 950.2,1285.0 571.0,1288.7 200.6,1290.5 215.7,1282.4 180.8,950.0 135.1,852.8 179.3,568.0 108.4,422.2 115.7,270.3 144.4,230.7 152.4,122.8 161.3,73.7 175.8,58.7 190.9,83.0 258.7,37.8 753.1,29.6 994.0,84.3 1000.4,83.7 972.6,192.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0275/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[507.0,174.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.44636354685483,47.658663004896034]}},{"type":"Feature","properties":{"resourceCoords":[207.0,1297.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.44766641648125,47.655583397363465]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0276/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p276","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0276/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0276","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"915.2,1292.5 531.0,1291.4 531.0,1300.0 158.5,1304.7 155.0,632.0 178.1,636.3 187.3,198.6 182.2,197.1 210.4,87.2 555.8,52.6 878.7,77.4 911.9,70.8 907.9,288.1 913.4,288.1 913.4,703.1 908.0,703.2 909.6,996.9 905.6,996.9 915.2,1292.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0276/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[531.0,1300.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4431227,47.6555795]}},{"type":"Feature","properties":{"resourceCoords":[155.0,632.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4445979,47.657411]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0277/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p277","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0277/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0277","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"590.1,1331.7 589.5,1316.2 225.9,1319.1 213.6,1039.9 217.5,1039.8 212.6,750.5 217.9,750.4 213.2,341.5 207.7,341.6 209.2,127.4 658.1,33.1 908.8,64.1 927.5,70.7 960.0,70.2 966.5,330.4 960.3,330.5 965.1,739.1 949.5,737.9 955.3,1026.6 959.5,1327.4 590.1,1331.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0277/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[220.0,745.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.44153305658286,47.65720027129779]}},{"type":"Feature","properties":{"resourceCoords":[963.0,1311.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.43855404655537,47.65558382977848]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0278/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p278","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0278/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0278","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"123.4,1029.0 121.0,738.8 136.7,740.3 136.7,329.6 142.9,329.6 139.5,68.0 410.7,67.7 916.2,67.0 944.7,90.7 950.0,583.8 943.8,583.7 905.2,943.6 835.5,947.1 865.4,959.2 964.0,975.2 939.3,983.6 885.3,1019.9 856.5,1064.7 837.4,1128.3 835.0,1245.0 826.1,1295.2 780.0,1333.5 720.4,1338.3 693.3,1327.5 124.1,1331.4 123.4,1029.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0278/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[427.0,75.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.43725715629495,47.658974283810664]}},{"type":"Feature","properties":{"resourceCoords":[955.0,332.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.43512180473635,47.65824661933669]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0279/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p279","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"22"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0279/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0279","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"222.4,76.5 554.6,30.5 818.5,24.1 1009.5,67.0 1031.2,45.0 982.5,612.2 925.2,646.7 876.0,686.5 860.2,716.2 896.5,716.8 890.8,751.4 891.9,889.1 872.4,935.5 878.7,1268.5 879.9,1311.4 519.6,1269.0 513.4,1399.0 495.6,1399.0 483.5,1287.5 278.0,1299.0 230.0,1326.0 187.2,1362.0 161.6,1399.0 124.3,1399.0 126.6,1373.2 114.8,1309.0 89.6,1270.8 98.9,1220.8 102.4,1104.8 122.0,1041.7 151.1,997.4 205.2,961.8 229.8,953.7 131.9,936.8 102.3,924.5 171.6,921.7 213.4,564.0 219.6,564.1 219.0,73.5 222.4,76.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0279/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[219.0,310.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4351544,47.658257]}},{"type":"Feature","properties":{"resourceCoords":[219.0,50.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4351482,47.6589743]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0280/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p280","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0280/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0280","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"503.3,1285.0 503.1,1276.7 166.2,1290.7 165.9,1278.3 159.1,945.4 178.4,899.0 177.2,761.4 182.8,726.7 146.5,726.2 162.2,696.5 211.4,656.6 268.6,622.0 316.4,54.8 349.2,33.6 661.1,64.4 762.3,59.1 869.5,315.0 845.4,323.0 857.5,360.5 866.3,901.4 873.5,1254.7 874.0,1301.7 503.3,1285.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0280/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[507.0,717.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.43106049406413,47.65714403974601]}},{"type":"Feature","properties":{"resourceCoords":[876.0,717.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.42954876997838,47.65713645502492]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0281/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p281","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0281/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0281","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"420.1,91.6 542.4,41.2 841.1,42.5 844.8,64.0 1014.6,61.2 751.1,232.3 769.5,225.2 779.9,744.3 785.4,971.7 787.9,1176.3 791.5,1292.6 791.9,1305.8 416.1,1323.5 415.8,1299.8 407.6,944.6 397.3,400.9 384.9,363.1 409.2,355.0 300.7,98.1 420.1,91.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0281/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[413.0,1313.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.42958762275393,47.655616601712964]}},{"type":"Feature","properties":{"resourceCoords":[781.0,264.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.42804446307261,47.6584853102211]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0282/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p282","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0282/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0282","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"313.7,205.7 587.6,39.1 681.4,40.4 714.6,40.5 714.6,71.5 714.1,125.0 710.6,295.3 758.7,368.1 802.2,412.6 849.4,452.2 804.3,445.6 774.1,427.2 734.0,377.7 710.5,338.6 711.3,731.4 708.9,965.3 704.4,1172.4 704.4,1293.4 704.4,1296.1 323.0,1288.6 323.0,1288.1 322.7,1169.4 326.4,960.7 327.6,728.6 332.7,198.9 313.7,205.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0282/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[702.0,738.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.42657330720874,47.65716131081407]}},{"type":"Feature","properties":{"resourceCoords":[702.0,77.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.42662445773121,47.65893923008864]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0283/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p283","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0283/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0283","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"784.2,1259.3 742.0,1302.3 672.5,1350.3 507.6,1350.3 457.5,1329.5 456.5,1329.1 425.5,1316.4 426.4,1267.7 419.9,1228.3 421.5,1033.7 433.0,976.4 430.2,611.4 430.0,584.0 424.6,23.3 444.6,28.3 820.1,36.5 821.5,229.2 820.9,609.8 827.2,1085.7 827.4,1175.8 821.6,1212.8 784.2,1259.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0283/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[414.0,1316.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.42643057940764,47.659070685687766]}},{"type":"Feature","properties":{"resourceCoords":[414.0,49.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4212029254536,47.659067178217995]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0284/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p284","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0284/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0284","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"650.1,51.1 652.5,294.5 655.0,980.0 655.0,1346.8 275.6,1353.3 313.1,1330.0 360.3,1290.7 377.6,1261.2 383.3,1217.5 389.3,1180.5 389.6,1090.7 385.9,615.9 388.6,236.3 388.2,44.0 650.1,51.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0284/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-117.4209780186282,47.659020266573236]}},{"type":"Feature","properties":{"resourceCoords":[1088.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-117.42095796045614,47.655990473332814]}},{"type":"Feature","properties":{"resourceCoords":[1088.0,1400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-117.42674847021875,47.65597309589163]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-117.42676852839082,47.659002889132054]}},{"type":"Feature","properties":{"resourceCoords":[655.0,980.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4250193,47.6571841]}},{"type":"Feature","properties":{"resourceCoords":[655.0,980.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4250193,47.6571841]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0285/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p285","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.84"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0285/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0285","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"699.9,11.8 701.8,252.2 709.9,970.3 714.8,1338.7 486.5,1341.8 483.1,971.2 474.4,278.6 469.8,32.7 699.9,11.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0285/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[473.0,599.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.42349560904836,47.65720739425457]}},{"type":"Feature","properties":{"resourceCoords":[473.0,33.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.42117875934578,47.65720018096294]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0286/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p286","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0286/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0286","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"773.5,639.0 750.6,638.8 749.0,985.8 762.9,985.4 740.1,1353.0 709.3,1353.6 593.5,1357.4 395.2,1359.5 387.2,995.5 373.1,286.1 369.2,48.5 590.6,26.1 590.9,38.3 717.9,35.4 751.2,277.0 747.5,277.1 760.4,608.5 773.1,607.8 875.6,618.9 773.5,639.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0286/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-117.42087498395402,47.657609909350526]}},{"type":"Feature","properties":{"resourceCoords":[1088.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-117.42093481397566,47.654552987411854]}},{"type":"Feature","properties":{"resourceCoords":[1088.0,1400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-117.42673370729239,47.65460520979302]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-117.42667387727073,47.65766213173169]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0291__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p291 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"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":"4352.0"},{"label":"split_canvas_h","value":"4508.8"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0291__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0291","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"972.4,925.2 830.0,779.0 1050.2,779.6 1052.0,601.6 1048.6,442.6 1047.9,54.1 994.3,54.1 786.4,78.5 607.9,45.6 179.0,203.2 175.7,371.5 136.3,396.6 163.2,614.1 297.0,632.6 336.1,582.8 563.7,580.5 913.5,961.1 914.8,962.4 972.4,925.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0291__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1037.0,762.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.44776417168559,47.65367220602588]}},{"type":"Feature","properties":{"resourceCoords":[1037.0,74.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.44773696671815,47.65554772192842]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0292/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p292","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.83"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0292/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0292","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"466.2,1336.1 295.5,1280.9 270.6,1153.5 124.1,1154.8 108.0,946.9 99.0,937.0 154.5,901.2 18.5,761.5 228.9,762.2 230.6,592.1 227.5,440.2 227.0,69.0 584.7,69.8 951.0,69.0 948.8,442.9 953.7,442.9 882.3,1122.3 605.7,1125.5 583.6,1125.7 577.4,1207.2 578.4,1248.6 467.1,1345.7 466.2,1336.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0292/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[951.0,69.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4446261,47.6555824]}},{"type":"Feature","properties":{"resourceCoords":[227.0,69.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4476921,47.6556016]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0293/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p293","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0293/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0293","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"639.6,1219.3 639.1,1171.1 240.5,1199.2 238.4,1226.4 197.6,1227.3 263.1,525.4 258.0,525.4 255.7,139.5 622.0,132.8 622.0,124.4 999.8,123.4 1014.8,515.1 997.4,515.4 1000.9,844.8 1002.9,1217.3 639.6,1219.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0293/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[258.0,142.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.444616863237,47.65557541281752]}},{"type":"Feature","properties":{"resourceCoords":[1002.0,525.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.44159760381388,47.65447364269007]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0294/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p294","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0294/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0294","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"362.7,1208.7 203.7,1330.7 166.2,1279.1 159.2,1198.7 163.3,830.0 165.2,504.1 182.4,504.1 173.7,104.5 532.8,109.7 533.0,125.0 897.8,129.0 901.0,508.0 899.2,508.0 899.3,801.4 815.0,815.2 748.0,813.6 661.3,843.5 661.3,867.7 723.2,842.7 897.3,845.3 892.1,1199.7 897.0,1200.6 895.7,1200.8 901.5,1399.0 881.0,1399.0 880.0,1390.0 862.0,1390.0 861.0,1399.0 681.4,1399.0 392.4,1177.8 362.7,1208.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0294/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[901.0,508.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4385642,47.65448]}},{"type":"Feature","properties":{"resourceCoords":[533.0,125.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.440083,47.6555547]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0295/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p295","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0295/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0295","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"239.2,813.0 154.6,826.8 87.1,825.2 1.0,855.0 1.0,879.2 62.3,854.5 237.2,857.1 232.1,1213.4 235.7,1214.6 241.1,1399.0 343.4,1399.0 443.2,1399.0 600.4,1215.5 606.4,1215.5 974.2,1217.0 977.1,845.5 977.0,559.0 979.0,518.0 974.2,338.1 964.5,313.9 962.9,269.7 968.3,210.5 956.6,146.6 931.7,108.7 885.7,146.0 826.7,150.1 800.1,139.1 237.8,136.9 241.0,518.0 239.2,518.0 239.2,813.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0295/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[241.0,518.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4385642,47.65448]}},{"type":"Feature","properties":{"resourceCoords":[979.0,518.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4355199,47.6544705]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0296/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p296","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0296/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0296","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"696.4,1204.9 538.3,1206.5 174.4,1196.2 174.0,829.4 171.4,546.5 173.0,506.0 166.7,328.4 156.9,304.6 154.9,261.0 157.6,227.7 194.2,227.4 219.0,191.0 260.7,155.3 307.6,128.5 509.0,115.7 521.7,224.9 539.2,224.8 544.2,97.3 897.8,136.1 899.4,179.3 911.0,506.0 915.3,694.0 916.5,852.6 922.1,1150.7 922.6,1205.7 696.4,1204.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0296/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[173.0,506.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4355199,47.6544705]}},{"type":"Feature","properties":{"resourceCoords":[911.0,506.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4324371,47.6544423]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0297/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p297","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0297/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0297","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"255.1,87.7 589.0,79.7 589.1,88.0 956.1,111.0 955.9,148.0 954.9,679.0 956.5,863.5 955.0,1218.5 954.9,1228.5 353.0,1236.2 254.8,1196.9 255.6,1143.5 257.1,842.2 259.7,681.9 259.9,491.9 256.0,161.6 255.1,87.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0297/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[590.0,490.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4310724,47.6544571]}},{"type":"Feature","properties":{"resourceCoords":[955.0,490.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4295634,47.6544675]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0298/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p298","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0298/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0298","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"530.1,1228.9 244.0,1225.7 166.2,1242.9 166.7,1207.9 171.0,856.0 170.9,673.0 176.2,146.8 177.1,87.0 544.5,80.2 544.6,67.8 909.8,74.7 908.9,155.4 905.5,495.9 900.9,677.8 895.9,959.5 893.2,1226.2 813.1,1226.2 530.1,1228.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0298/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[537.0,856.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4280154,47.6534463]}},{"type":"Feature","properties":{"resourceCoords":[171.0,856.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4295416,47.6534274]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0299/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p299","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0299/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0299","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"235.8,133.4 599.4,162.4 599.2,148.6 942.7,156.2 942.1,179.0 960.3,281.1 963.9,490.2 962.2,888.0 953.1,888.0 972.1,1250.8 638.4,1253.2 505.3,1252.4 235.6,1253.4 234.4,987.6 235.4,706.6 237.5,525.2 235.9,185.8 235.8,133.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0299/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[235.0,890.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4265104,47.6534489]}},{"type":"Feature","properties":{"resourceCoords":[964.0,523.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.423467,47.6544914]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0300/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p300","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0300/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0300","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"241.8,885.4 232.6,885.4 249.7,1251.6 557.7,1251.2 832.7,1252.5 888.2,1166.4 919.0,988.0 842.2,1.0 829.9,1.0 829.9,127.8 587.8,155.8 587.8,152.1 256.4,157.4 256.9,170.2 243.3,273.1 245.8,484.0 241.8,885.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0300/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[586.0,518.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4220564,47.6544982]}},{"type":"Feature","properties":{"resourceCoords":[829.0,518.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4210491,47.6545048]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0301/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p301","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.67"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0301/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0301","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"310.4,210.7 310.6,169.7 318.9,89.2 340.8,89.6 653.8,94.7 656.8,68.6 1039.9,56.8 1038.5,103.0 1037.2,149.0 1037.2,149.2 1031.3,491.9 1087.0,458.1 1087.0,536.6 1087.0,543.7 1014.6,597.9 983.9,1297.3 975.8,1298.5 541.6,1214.0 545.6,1131.2 201.9,1281.3 152.4,1197.0 92.0,1172.5 139.2,1149.9 152.4,939.5 222.2,711.3 197.6,303.7 310.4,210.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0301/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[362.0,438.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.446012,47.6515752]}},{"type":"Feature","properties":{"resourceCoords":[362.0,822.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.445982,47.6504688]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0302/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p302","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0302/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0302","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"286.0,1290.9 187.2,1313.5 179.9,1314.8 184.4,584.1 257.8,524.7 254.4,435.4 197.7,472.9 190.4,115.0 189.9,67.0 553.7,65.6 562.0,146.9 600.7,198.5 759.8,72.7 789.4,41.0 1087.0,262.0 1087.0,1031.1 1050.5,1031.0 941.4,1136.8 941.9,1176.5 942.1,1197.1 942.2,1208.7 568.1,1203.9 567.2,1195.8 502.4,1195.6 387.6,1269.1 314.0,1286.6 286.0,1290.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0302/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[571.0,809.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.44164198743913,47.65050720488635]}},{"type":"Feature","properties":{"resourceCoords":[571.0,217.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.44159501219247,47.65214141363544]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0304/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p304","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0304/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0304","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"154.2,102.1 148.2,102.2 1.0,281.2 1.0,1083.0 41.8,1082.9 162.2,1218.6 171.8,1218.4 543.2,1211.9 911.4,1208.5 900.7,444.5 895.8,129.1 895.2,102.5 524.3,96.2 154.2,102.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0304/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[535.0,101.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.43550963879683,47.65251417626123]}},{"type":"Feature","properties":{"resourceCoords":[165.0,101.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.43702583250817,47.65253948227484]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0305/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p305","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.77"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0305/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0305","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"632.5,1244.8 629.1,1199.2 222.8,1220.3 186.8,466.9 172.7,181.0 171.4,155.8 170.0,129.5 328.9,120.8 556.3,111.4 556.1,109.3 656.4,141.6 864.1,124.6 922.7,241.8 912.1,265.6 918.4,486.7 915.4,486.9 941.0,854.0 961.5,1224.8 632.5,1244.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0305/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[205.0,854.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4340645,47.650457]}},{"type":"Feature","properties":{"resourceCoords":[941.0,854.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.431014,47.6503366]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0306/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p306","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0306/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0306","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"190.1,903.9 188.0,532.0 191.1,532.0 199.1,308.6 211.3,285.3 159.8,163.3 554.9,156.4 554.9,181.9 633.6,163.4 924.1,163.1 928.8,163.0 928.0,532.0 925.0,532.0 927.6,899.8 950.2,899.6 953.8,1274.0 579.8,1275.1 186.7,1279.2 190.1,903.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0306/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[188.0,532.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4310311,47.6513658]}},{"type":"Feature","properties":{"resourceCoords":[925.0,532.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4280033,47.6513774]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0307/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p307","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0307/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0307","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"144.5,1260.8 147.9,886.3 125.3,886.0 129.6,518.2 132.6,518.2 140.3,149.2 423.0,148.1 504.3,148.6 779.0,153.2 914.5,156.7 1002.9,157.8 1000.2,531.2 986.5,531.0 975.9,1268.2 972.2,1268.2 1087.0,1390.7 1087.0,1399.0 978.4,1399.0 856.0,1294.8 856.0,1289.2 856.0,1274.8 695.1,1273.0 647.5,1263.5 461.8,1265.8 144.5,1260.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0307/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[870.0,525.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.42496273381784,47.65140845339228]}},{"type":"Feature","properties":{"resourceCoords":[870.0,892.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.42492603919709,47.650393440188175]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0308/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p308","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.68"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0308/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0308","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"254.7,1373.7 254.4,1365.3 136.0,1246.5 139.7,1246.4 130.8,511.9 144.4,511.7 137.2,139.7 701.5,132.2 980.0,130.3 976.8,135.4 1016.5,868.2 989.2,868.4 990.5,1240.8 858.0,1242.2 712.2,1399.0 173.8,1399.0 145.8,1376.5 254.7,1373.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0308/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-117.42501425545464,47.65282169047249]}},{"type":"Feature","properties":{"resourceCoords":[1088.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-117.42056102564247,47.65281498201861]}},{"type":"Feature","properties":{"resourceCoords":[1088.0,1400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-117.42057375010477,47.64892760746552]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-117.42502697991694,47.6489343159194]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0310/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p310","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.28"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0310/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0310","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"115.6,1230.2 89.8,771.2 122.5,335.1 72.2,242.1 442.2,95.2 435.0,182.9 892.4,288.1 908.7,286.4 1010.5,270.8 1023.1,269.7 876.1,1292.1 555.9,1275.0 547.0,1249.5 523.9,1275.8 85.9,1259.2 115.6,1230.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0310/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[550.0,1246.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4444965,47.6464824]}},{"type":"Feature","properties":{"resourceCoords":[439.0,277.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4451471,47.6490942]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0311/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p311","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.10"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0311/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0311","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"165.6,1338.2 566.1,1170.5 572.2,1232.4 592.1,1239.9 964.0,1236.0 979.5,1205.0 971.5,596.8 967.0,180.8 965.0,12.9 549.0,9.0 548.1,1.0 474.4,1.0 348.6,82.2 266.8,101.9 249.4,104.7 165.6,1338.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0311/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[595.0,1236.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.441619,47.6463686]}},{"type":"Feature","properties":{"resourceCoords":[964.0,1236.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4402593,47.6463477]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0312/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p312","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0312/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0312","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"763.6,1249.5 705.9,1243.2 444.6,1245.8 170.0,1249.0 183.6,1221.8 176.7,687.2 172.8,321.6 170.7,142.6 170.1,103.8 262.3,13.8 778.8,11.3 886.1,132.8 895.5,132.7 911.0,1249.0 763.6,1249.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0312/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[170.0,1249.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4402593,47.6463477]}},{"type":"Feature","properties":{"resourceCoords":[911.0,1249.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4371525,47.6463003]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0313/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p313","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0313/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0313","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"193.8,1270.9 212.1,128.4 583.7,133.8 951.9,142.2 949.0,328.4 939.1,700.1 936.2,896.7 935.1,1093.8 932.4,1215.8 935.3,1285.3 897.8,1292.7 735.3,1291.6 676.6,1239.9 554.1,1237.2 554.2,1275.5 341.3,1273.1 193.8,1270.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0313/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[201.0,892.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.43713439999428,47.647346416979424]}},{"type":"Feature","properties":{"resourceCoords":[943.0,892.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.43409399306691,47.64736124358997]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0314/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p314","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0314/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0314","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"581.0,1280.0 148.5,1270.5 146.0,1201.1 149.5,1079.4 151.8,882.6 155.8,686.3 168.0,315.4 172.1,129.4 583.5,137.7 583.6,184.0 917.0,187.7 916.6,553.6 920.0,927.2 920.0,1278.8 581.0,1280.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0314/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[581.0,934.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4323572,47.6472219]}},{"type":"Feature","properties":{"resourceCoords":[581.0,1280.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4323382,47.6462652]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0315/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p315","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0315/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0315","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"598.8,68.9 996.8,68.5 963.0,435.8 958.9,435.8 955.0,1168.0 601.5,1169.5 213.0,1168.0 210.9,815.0 205.4,439.7 203.6,72.2 598.8,68.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0315/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[213.0,1168.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4309467,47.6462812]}},{"type":"Feature","properties":{"resourceCoords":[955.0,1168.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4279143,47.6462968]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0316/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p316","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"34"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0316/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0316","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1013.1,1145.0 855.1,1241.5 868.0,1270.1 610.5,1236.0 586.6,1154.5 121.5,1160.5 115.0,436.0 119.0,436.0 147.2,72.1 441.0,67.7 625.5,59.5 673.0,67.5 833.0,64.4 833.3,78.7 833.5,84.3 1087.0,286.6 1087.0,1148.2 1080.2,1144.4 1076.5,1142.3 1013.1,1145.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0316/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[470.0,436.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4264547,47.6483064]}},{"type":"Feature","properties":{"resourceCoords":[115.0,436.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4279211,47.648313]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0318/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p318","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0318/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0318","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"903.4,1057.1 945.6,1082.2 1010.7,1108.7 994.4,1073.0 965.5,959.4 962.1,581.0 958.1,409.7 970.9,246.9 966.4,49.1 951.4,67.3 511.5,13.3 297.0,21.2 237.6,61.9 236.3,41.2 208.6,41.8 214.1,424.2 79.0,427.2 1.0,513.6 1.0,1057.7 422.4,1172.0 469.5,1179.0 596.7,1216.8 743.1,1276.0 742.2,1258.8 1087.0,1352.4 1087.0,1256.5 976.6,1186.7 883.2,1113.1 829.4,1051.7 783.2,960.3 868.7,1032.5 903.4,1057.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0318/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[587.0,58.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.41945548470629,47.65034660982549]}},{"type":"Feature","properties":{"resourceCoords":[217.0,58.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.42094003351102,47.65036000904737]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0319/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p319","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0319/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0319","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"292.2,62.0 388.7,47.5 960.8,85.3 961.0,458.3 948.6,487.3 944.6,524.0 948.6,763.9 948.1,840.5 954.6,1185.8 955.1,1228.8 768.0,1225.2 364.0,1288.9 326.7,1262.0 268.8,1183.4 258.9,1160.8 243.6,1126.1 217.2,1016.0 218.8,650.2 217.2,484.6 231.6,327.4 229.8,136.2 292.2,62.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0319/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[593.0,111.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.416425,47.6504274]}},{"type":"Feature","properties":{"resourceCoords":[961.0,111.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4148972,47.6504274]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0320/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p320","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0320/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0320","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"904.0,1285.5 851.0,1306.2 803.8,1312.7 732.1,1313.7 635.8,1273.4 527.1,1233.3 488.1,1226.2 420.4,1223.8 329.5,1223.1 286.1,1210.7 80.8,1199.3 74.5,853.9 75.0,777.2 71.2,537.3 75.2,500.6 87.6,471.6 87.6,98.5 99.2,99.3 268.1,51.1 663.7,56.2 973.0,103.3 975.4,348.6 982.7,490.0 967.8,489.9 923.7,935.4 944.2,940.7 922.0,1274.7 904.0,1285.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0320/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[455.0,120.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4133733,47.6504398]}},{"type":"Feature","properties":{"resourceCoords":[973.0,120.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4112233,47.6504407]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0321/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p321","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0321/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0321","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"222.2,914.9 201.5,909.3 250.5,461.0 265.6,461.2 259.6,318.6 259.8,71.5 268.9,73.0 298.4,39.4 779.7,30.0 959.4,46.5 1003.9,73.8 1003.7,443.2 994.0,934.0 992.4,1140.2 992.7,1216.0 992.8,1259.1 992.7,1276.5 145.9,1312.8 216.1,1239.4 196.3,1251.1 222.2,914.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0321/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[641.0,89.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.409652,47.6504505]}},{"type":"Feature","properties":{"resourceCoords":[994.0,934.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.40816,47.648116]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0322/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p322","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0322/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0322","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"250.6,1125.6 250.7,1112.2 253.4,908.5 265.8,423.8 268.1,59.0 284.7,152.7 717.1,140.7 797.1,201.9 780.1,595.8 772.1,1072.6 846.8,1074.5 738.9,1256.8 250.6,1125.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0322/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[795.0,265.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4059461,47.6499492]}},{"type":"Feature","properties":{"resourceCoords":[267.0,265.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.408148,47.6499245]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0323/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p323","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0323/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0323","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"920.2,1301.6 239.2,1132.5 344.9,945.8 269.2,945.4 267.9,462.3 277.4,63.1 307.3,85.0 448.2,50.6 808.1,49.6 953.3,92.8 924.5,213.7 920.6,949.1 921.0,1278.0 920.2,1301.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0323/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[620.0,129.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4045321,47.6499411]}},{"type":"Feature","properties":{"resourceCoords":[921.0,1278.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4033054,47.6467516]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0324/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p324","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0324/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0324","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"208.2,1260.4 207.0,932.0 209.1,197.8 237.4,77.0 315.8,42.9 849.9,54.6 857.9,50.2 853.4,596.2 855.0,752.1 853.1,933.3 859.0,1260.0 208.2,1260.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0324/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[207.0,932.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4033034,47.647664]}},{"type":"Feature","properties":{"resourceCoords":[859.0,1260.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4006215,47.6467431]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0325/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p325","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0325/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0325","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"253.5,953.0 255.0,771.0 252.9,614.5 256.0,66.3 301.4,41.0 774.3,37.4 909.0,74.0 909.0,763.8 913.3,1270.9 260.3,1281.0 253.5,953.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0325/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[255.0,771.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4006268,47.6481544]}},{"type":"Feature","properties":{"resourceCoords":[583.0,119.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.3992586,47.6499515]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0326/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p326","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0326/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0326","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"208.1,1297.3 206.0,790.0 209.1,100.0 303.6,57.0 723.0,55.6 884.1,113.5 904.5,235.6 857.5,236.2 856.3,362.9 858.2,788.1 866.5,1292.4 208.1,1297.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0326/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[206.0,790.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.3979403,47.6481602]}},{"type":"Feature","properties":{"resourceCoords":[859.0,135.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.3952496,47.6499658]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0327/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p327","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0327/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0327","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"302.2,1.0 254.8,1.0 252.2,127.5 249.1,555.1 251.6,1062.3 249.0,1220.0 248.8,1228.2 899.0,1238.0 908.1,893.5 899.5,893.5 908.5,507.9 909.5,126.1 903.9,127.3 315.6,88.2 302.2,1.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0327/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[581.0,140.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.393921,47.6493082]}},{"type":"Feature","properties":{"resourceCoords":[249.0,1220.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.3952406,47.6463304]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0328/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p328","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0328/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0328","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"218.7,1234.4 225.6,888.5 216.9,888.5 223.4,501.2 221.9,117.9 413.4,75.1 546.3,109.8 669.2,233.1 851.4,272.8 871.0,312.2 994.1,312.4 1037.3,1075.8 1007.6,1154.5 928.8,1169.2 923.8,1233.2 874.8,1240.0 218.7,1234.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0328/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[222.0,558.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.3925772,47.6481482]}},{"type":"Feature","properties":{"resourceCoords":[876.0,1220.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.3899138,47.6463376]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0329/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p329","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0329/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0329","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"974.0,1337.4 492.6,1363.3 403.2,1343.7 338.5,1269.4 208.8,1031.5 183.3,748.7 108.4,535.5 117.4,158.2 151.9,88.7 226.4,78.5 257.8,44.4 695.6,37.0 717.2,9.6 727.5,34.5 1047.9,34.1 993.3,650.8 1042.0,738.8 1021.6,1003.9 1031.4,1004.0 1029.8,1278.3 1050.0,1358.9 975.1,1350.8 974.0,1337.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0329/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[667.0,631.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.44471650060194,47.64478377375086]}},{"type":"Feature","properties":{"resourceCoords":[667.0,43.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.44471076201289,47.646381947728536]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0330/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p330","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.02"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0330/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0330","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"158.7,1251.2 133.9,1186.2 108.0,958.0 99.8,958.9 90.5,736.5 41.3,668.2 27.9,231.9 320.2,74.1 329.4,120.8 345.2,125.0 627.9,94.0 865.5,67.8 897.9,330.1 916.7,461.5 932.8,593.6 950.9,737.0 947.0,749.3 923.4,1027.7 857.9,1022.1 857.0,1152.0 699.0,1229.8 701.4,1283.9 345.6,1352.4 113.7,1338.8 95.7,1251.9 158.7,1251.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0330/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[108.0,958.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4432501,47.6437676]}},{"type":"Feature","properties":{"resourceCoords":[954.0,58.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4386785,47.6463358]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0331/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p331","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.84"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0331/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0331","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"902.0,1324.1 579.2,1323.1 579.4,1320.8 386.1,1280.2 363.1,1149.2 230.2,1120.0 299.8,801.8 306.1,788.1 306.2,772.1 307.1,619.7 308.5,464.5 306.8,309.9 309.2,1.7 574.1,7.5 632.5,15.8 781.8,20.1 927.9,22.6 923.5,510.8 923.0,653.4 909.4,704.5 909.0,840.5 902.1,1166.5 902.0,1324.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0331/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-117.44038673709191,47.6463354825986]}},{"type":"Feature","properties":{"resourceCoords":[1088.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-117.43588684424405,47.646364413266724]}},{"type":"Feature","properties":{"resourceCoords":[1088.0,1400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-117.4358315522479,47.64246592126796]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1400.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-117.44033144509577,47.64243699059984]}},{"type":"Feature","properties":{"resourceCoords":[902.0,1330.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4366036,47.6426559]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0332/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p332","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0332/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0332","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"198.9,39.7 206.1,523.9 208.9,665.3 196.7,716.3 199.4,851.1 200.3,1174.5 204.1,1336.6 538.8,1328.5 873.0,1324.0 866.8,1001.9 867.6,682.8 865.2,367.0 922.9,309.1 902.8,292.5 838.0,208.1 814.2,166.1 799.9,126.9 783.1,39.2 746.4,47.3 586.6,49.6 529.0,1.0 407.4,1.0 408.3,37.6 198.9,39.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0332/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[533.0,687.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4351944,47.6444666]}},{"type":"Feature","properties":{"resourceCoords":[873.0,1324.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4338152,47.6426646]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0333/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p333","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0333/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0333","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"622.9,35.8 965.0,39.0 960.3,373.7 950.5,721.0 943.0,1026.4 931.0,1359.5 225.1,1339.3 232.2,1009.4 246.3,682.7 257.0,359.4 318.5,302.5 298.6,284.7 235.8,195.6 213.2,151.7 200.2,110.9 186.7,20.5 622.9,35.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0333/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[247.0,689.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.43379639038353,47.64444796052071]}},{"type":"Feature","properties":{"resourceCoords":[247.0,1010.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.43376171164681,47.64356840416904]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0334/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p334","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0334/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0334","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"541.2,32.6 895.6,26.1 905.8,1170.0 908.0,1344.2 161.6,1355.0 162.5,1022.3 159.9,717.4 158.2,370.6 151.8,36.6 541.2,32.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0334/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[529.0,1012.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.42943531201308,47.64359568572123]}},{"type":"Feature","properties":{"resourceCoords":[899.0,54.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.42790126237514,47.64621998256822]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0335/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p335","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0335/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0335","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"665.5,29.1 687.4,111.9 946.1,153.3 967.1,203.5 977.6,228.4 850.3,337.2 876.4,577.9 814.6,593.7 915.8,990.0 965.0,1186.3 1017.4,1349.5 537.1,1341.3 317.8,1338.3 189.8,1334.5 173.3,1334.0 175.8,1160.7 196.6,22.5 665.5,29.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0335/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[323.0,1004.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4273141719252,47.643595499867324]}},{"type":"Feature","properties":{"resourceCoords":[672.0,46.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.42596507826401,47.646258731198145]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0336/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p336","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.77"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0336/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0336","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"167.8,307.4 292.8,203.5 282.9,179.2 251.6,101.7 409.9,13.6 434.2,13.5 471.9,13.4 475.5,15.6 518.3,42.5 523.8,13.3 632.9,13.1 669.0,67.8 706.1,13.0 749.5,13.0 672.8,135.2 953.0,325.0 869.7,449.4 848.5,505.3 845.5,576.9 869.3,621.8 897.6,724.2 950.7,838.1 953.0,914.6 964.0,980.3 953.0,1312.0 317.4,1292.1 268.6,1133.0 223.3,941.8 130.0,556.0 190.2,541.4 167.8,307.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0336/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[953.0,1312.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4217571,47.642685]}},{"type":"Feature","properties":{"resourceCoords":[953.0,325.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4218961,47.6454899]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0337/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p337","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0337/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0337","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"617.0,1341.3 612.0,1302.2 620.5,1240.3 613.9,1213.7 547.4,1214.6 474.9,1238.4 276.8,1241.2 175.8,1242.7 132.2,1243.5 69.5,1244.8 359.8,55.0 361.2,55.1 379.0,55.6 499.2,59.0 536.4,66.5 637.7,58.5 660.0,55.7 834.5,53.1 946.0,65.0 946.2,34.5 1053.7,128.6 1087.0,128.9 1087.0,1209.2 1045.0,1248.8 764.8,1299.2 763.6,1292.7 634.6,1285.2 617.0,1341.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0337/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[154.0,1243.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4081514,47.6472736]}},{"type":"Feature","properties":{"resourceCoords":[946.0,65.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4033655,47.6450747]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0339/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p339","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0339/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0339","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"740.8,87.2 739.8,80.7 611.5,70.6 611.4,71.5 593.0,127.1 588.6,88.1 597.9,26.6 591.9,1.0 522.2,1.0 452.9,22.8 255.5,22.8 172.4,22.9 212.3,874.4 138.2,804.1 160.9,842.2 181.5,896.1 187.8,943.9 188.3,1016.6 146.9,1114.0 105.6,1223.8 98.2,1263.2 95.3,1331.9 94.4,1399.0 114.0,1389.6 140.4,1363.2 172.6,1350.0 242.8,1293.8 649.3,1265.0 651.2,1287.7 941.3,1271.7 943.3,1170.9 938.8,1140.8 938.8,1066.9 926.5,915.9 950.2,829.5 951.9,742.0 914.0,758.8 937.7,725.6 1065.1,637.4 1044.2,605.1 1032.8,627.4 1026.7,35.2 1020.6,40.8 740.8,87.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0339/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[158.0,1081.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.41248481392445,47.64718519180562]}},{"type":"Feature","properties":{"resourceCoords":[928.0,822.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.41140220377345,47.64506503663993]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0340/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p340","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0340/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0340","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"948.8,52.4 948.8,27.6 921.7,1.0 226.6,1.0 188.1,37.5 202.7,625.0 213.7,602.7 234.9,634.5 109.7,723.8 86.7,757.1 124.1,739.9 123.7,826.7 101.3,912.7 115.7,1062.4 116.8,1135.7 124.0,1179.0 398.6,1174.0 443.6,1182.7 488.9,1225.9 547.0,1220.8 609.4,1162.2 687.0,1128.0 720.8,1132.0 741.7,1152.3 789.9,1171.2 960.5,1172.2 957.2,808.0 953.8,567.9 952.0,300.0 948.9,88.0 948.8,52.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0340/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[124.0,1179.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4128868,47.6450102]}},{"type":"Feature","properties":{"resourceCoords":[952.0,300.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4092843,47.6426884]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0341/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p341","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0341/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0341","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"619.2,1258.7 697.9,1297.9 726.0,1300.8 768.9,1287.5 846.9,1287.6 914.3,1307.9 931.2,1260.0 1047.7,1047.7 998.0,1013.2 929.5,707.2 935.0,691.0 1019.9,319.8 1035.7,255.9 1033.5,195.6 1017.2,157.9 1013.6,108.1 1024.1,51.4 723.6,59.2 722.4,36.5 316.6,53.4 245.0,107.3 212.6,119.5 185.5,145.0 164.6,178.6 150.5,222.0 131.7,428.7 175.1,429.8 164.7,618.5 214.2,1028.6 185.7,1065.3 104.2,1120.8 81.2,1130.0 52.1,1192.2 25.6,1232.2 1.0,1263.5 1.0,1311.1 16.8,1304.1 79.3,1254.5 155.4,1167.0 228.9,1062.8 322.4,1067.4 214.6,1399.0 231.3,1399.0 305.4,1239.0 340.7,1177.7 373.8,1122.2 619.2,1258.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0341/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[626.0,720.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4160469,47.6460242]}},{"type":"Feature","properties":{"resourceCoords":[935.0,691.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.415882,47.6451719]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0342/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p342","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0342/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0342","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"169.9,1179.7 85.2,873.6 90.0,857.0 157.3,477.3 169.9,411.9 164.7,351.0 146.4,313.8 140.3,263.6 148.0,205.6 136.8,206.5 139.1,118.5 418.3,111.8 464.2,120.3 510.5,163.9 569.5,158.5 632.7,98.5 711.4,63.2 745.8,67.2 767.1,87.7 816.3,106.5 989.8,106.6 996.9,480.9 998.3,619.9 1003.8,1099.4 1004.0,1219.0 848.8,1215.5 798.1,1221.9 650.8,1222.5 574.6,1239.8 487.6,1265.8 428.2,1271.2 370.1,1267.3 288.5,1245.7 221.9,1212.1 169.9,1179.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0342/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[570.0,857.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4159084,47.6438592]}},{"type":"Feature","properties":{"resourceCoords":[90.0,857.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.415882,47.6451719]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0343/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p343","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.85"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0343/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0343","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"511.6,1301.4 457.5,1261.7 459.2,1217.8 580.0,1300.1 782.8,1023.7 905.5,1112.8 961.3,1136.4 964.3,1129.9 982.7,441.6 935.8,425.0 919.2,395.1 919.7,354.9 956.6,199.4 890.9,177.1 813.9,174.3 771.2,185.8 743.6,182.1 667.4,140.7 435.6,1.0 433.1,1.0 395.5,51.1 358.6,110.4 211.3,401.3 164.7,520.3 154.1,565.0 1.0,985.2 1.0,1399.0 350.8,1399.0 511.6,1301.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0343/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[661.0,932.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4215511,47.6458492]}},{"type":"Feature","properties":{"resourceCoords":[406.0,765.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4209326,47.6465964]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0344/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p344","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0344/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0344","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1011.6,796.6 1014.6,1140.7 671.1,1144.3 603.6,1158.6 524.7,1164.4 409.2,1224.4 304.6,1258.4 259.3,1285.0 185.1,1285.1 187.6,1278.3 149.2,575.8 100.1,562.8 80.7,533.7 77.9,492.8 102.6,331.4 117.4,282.3 224.8,63.1 291.0,96.8 372.2,118.6 430.0,122.7 489.1,117.4 575.9,91.9 651.8,75.0 798.5,74.8 848.9,68.6 1003.5,72.6 1006.5,300.6 994.6,679.6 1014.8,795.5 1015.0,796.5 1011.6,796.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0344/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[698.0,470.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.41900928262409,47.64353592970839]}},{"type":"Feature","properties":{"resourceCoords":[984.0,81.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.41743508778637,47.64273941351209]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0345/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p345","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0345/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0345","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"715.0,1308.0 715.0,1338.1 604.9,1327.2 432.7,1331.2 410.5,1315.8 410.8,1334.1 310.9,1342.8 274.1,1335.7 137.9,1332.9 113.1,1332.3 106.7,683.5 92.2,35.0 578.7,53.5 665.9,45.2 742.0,30.6 745.0,100.3 944.1,157.1 942.1,160.0 987.1,159.1 996.5,158.8 1087.0,306.4 1087.0,421.1 1067.5,432.4 1049.0,1002.0 1018.6,1002.8 1020.2,1399.0 820.6,1399.0 715.0,1308.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0345/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[418.0,1327.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4033017,47.6459018]}},{"type":"Feature","properties":{"resourceCoords":[418.0,47.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.398008,47.6458497]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0346/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p346","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0346/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0346","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"162.4,936.4 162.2,891.0 165.2,893.0 225.9,693.2 296.3,691.4 282.9,614.3 276.0,526.1 303.1,35.8 962.6,35.0 960.9,192.0 957.8,354.2 947.8,690.5 947.4,851.5 949.1,1170.8 913.1,1170.9 739.5,1399.0 683.0,1399.0 572.7,1247.2 473.2,1117.1 420.8,1069.5 282.2,973.4 233.3,939.8 162.4,936.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0346/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[293.0,366.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.39797674020208,47.645844774270685]}},{"type":"Feature","properties":{"resourceCoords":[943.0,1175.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.3953030717782,47.64361517765755]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0347/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p347","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0347/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0347","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"75.0,1372.1 61.3,1353.5 28.6,1311.2 2.3,1275.2 206.9,1006.8 243.2,1006.8 241.6,684.4 242.2,521.9 252.5,182.4 255.6,26.9 895.5,33.5 901.2,349.8 903.3,349.7 899.5,681.3 898.4,1011.5 895.2,1350.5 894.6,1379.4 75.0,1372.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0347/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[245.0,46.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.3952837469891,47.64625539551797]}},{"type":"Feature","properties":{"resourceCoords":[895.0,1326.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.39262714391538,47.642759437425816]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0348/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p348","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0348/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0348","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"222.7,1355.5 222.9,1329.2 221.9,994.3 219.0,668.0 218.7,340.4 216.6,340.4 207.1,28.1 870.0,26.7 926.1,350.6 994.4,354.9 1033.8,408.1 1035.4,1119.4 938.3,1154.4 890.8,1291.2 895.8,1355.4 870.5,1355.5 870.3,1369.0 222.7,1355.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0348/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[219.0,668.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.3926174,47.6445233]}},{"type":"Feature","properties":{"resourceCoords":[871.0,1320.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.3899621,47.6427017]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0350/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p350","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0350/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0350","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"866.7,1353.0 317.9,1354.6 110.0,1170.9 71.6,416.9 96.7,71.1 423.4,65.1 423.5,71.1 764.9,63.7 952.4,61.6 945.3,818.0 957.8,817.8 935.0,1302.5 944.3,1314.6 866.7,1353.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0350/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[431.0,466.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4365921,47.6415682]}},{"type":"Feature","properties":{"resourceCoords":[777.0,821.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4351953,47.6405794]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0351/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p351","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0351/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0351","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"137.1,1302.6 158.8,822.3 146.4,822.5 152.1,73.0 303.9,71.0 1000.5,63.0 1009.0,452.3 1013.2,823.1 1012.8,1220.3 559.2,1307.2 190.1,1292.8 146.3,1314.6 137.1,1302.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0351/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[669.0,436.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4323302,47.6416365]}},{"type":"Feature","properties":{"resourceCoords":[315.0,1248.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.433836,47.6393934]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0352/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p352","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0352/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0352","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"717.5,1341.5 589.9,1356.2 511.4,1346.4 452.6,1287.5 330.0,1282.6 315.3,1238.5 138.7,1214.0 73.3,1225.5 79.3,824.3 80.2,449.7 77.0,56.3 822.2,50.5 838.8,50.7 948.9,51.8 949.2,424.7 919.8,424.7 981.8,801.8 961.9,1171.5 836.3,1171.3 816.4,1171.3 815.5,1278.3 717.5,1341.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0352/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[827.0,803.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.42787966207598,47.64060660075573]}},{"type":"Feature","properties":{"resourceCoords":[457.0,61.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.42939074261574,47.64264751971469]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0353/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p353","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0353/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0353","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"874.6,1329.0 519.6,1356.3 442.7,1355.7 307.7,1330.2 172.6,1237.3 75.7,1236.7 22.1,1270.8 23.6,1165.1 43.3,1165.2 167.4,1166.1 189.3,801.0 130.3,428.1 159.4,428.3 161.4,59.9 179.5,60.1 397.0,60.0 873.1,61.5 919.2,164.2 938.2,230.9 947.0,296.0 948.2,425.9 946.1,804.1 942.8,1173.0 932.8,1261.2 906.2,1312.8 889.3,1329.5 874.6,1329.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0353/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[397.0,430.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4263991,47.6416467]}},{"type":"Feature","properties":{"resourceCoords":[397.0,60.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4264088,47.6426769]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0354/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p354","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0354/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0354","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"746.5,62.9 1087.0,62.9 1087.0,65.4 1087.0,66.2 964.8,86.3 960.0,139.8 921.2,144.7 921.5,368.1 979.9,387.5 1014.0,465.1 990.4,858.7 1029.7,1135.5 962.0,1310.5 869.7,1354.4 121.6,1336.6 138.4,1319.8 164.6,1267.8 173.9,1179.3 174.3,809.4 173.5,430.1 171.2,299.9 161.9,234.7 142.2,168.0 95.2,65.3 746.5,62.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0354/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[174.0,1058.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4241232,47.6399244]}},{"type":"Feature","properties":{"resourceCoords":[676.0,63.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4220476,47.642685]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0356/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p356","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0356/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0356","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"230.4,13.8 349.3,15.8 826.2,19.6 941.7,20.6 967.7,348.9 951.6,349.1 966.2,678.0 969.8,678.0 969.2,983.4 970.8,1303.8 965.9,1302.8 401.4,1363.3 126.9,1317.7 94.4,998.6 149.3,827.3 160.7,552.6 87.7,444.3 95.1,17.6 230.4,13.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0356/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[377.0,676.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.41678775928,47.64086674878028]}},{"type":"Feature","properties":{"resourceCoords":[955.0,676.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.41442847357574,47.64087584037179]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0357/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p357","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0357/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0357","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"194.2,981.1 194.4,675.8 190.8,675.7 175.8,346.7 191.8,346.6 165.4,18.3 188.1,18.4 560.6,18.1 929.0,19.2 932.6,528.5 931.0,1002.0 1002.0,995.7 996.1,1269.8 878.0,1333.1 460.9,1355.8 196.2,1301.6 194.2,981.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0357/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[931.0,1002.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.411356,47.6399822]}},{"type":"Feature","properties":{"resourceCoords":[931.0,350.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4113677,47.6417751]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0358__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p358 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"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":"4352.0"},{"label":"split_canvas_h","value":"5600.0"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0358__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0358","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"157.7,1003.6 157.8,993.1 821.3,1009.1 940.6,1102.5 940.9,1152.8 977.5,992.6 1022.8,992.4 918.5,531.0 809.0,12.1 592.6,14.8 319.2,16.1 74.1,19.2 82.9,532.9 86.1,1010.7 157.7,1003.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0358__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[914.0,530.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.40799609241044,47.641279416908695]}},{"type":"Feature","properties":{"resourceCoords":[108.0,530.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.41125643350986,47.64129194188748]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0359/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p359","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0359/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0359","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"229.3,1137.6 229.8,1185.8 274.1,1190.2 373.9,1336.3 595.1,1363.2 953.0,1334.5 996.2,1351.2 997.3,1351.1 995.0,974.6 877.2,976.0 869.1,517.7 865.0,24.9 881.8,15.2 928.1,63.8 938.7,1.0 155.6,1.0 127.8,7.4 91.7,7.6 203.4,521.3 309.5,978.1 264.6,978.5 229.3,1137.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0359/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[868.0,520.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.40526617211046,47.64125895641801]}},{"type":"Feature","properties":{"resourceCoords":[209.0,520.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.4079550321133,47.6412801001352]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0360/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p360","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0360/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0360","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"87.4,507.2 96.0,969.8 214.8,968.3 217.5,1348.3 216.4,1348.3 272.3,1369.9 807.0,1343.5 812.0,1345.4 868.1,1345.0 931.0,964.6 989.0,964.3 495.7,1.0 154.7,1.0 146.7,49.0 100.8,1.0 98.1,1.0 82.9,9.7 86.5,407.0 87.4,507.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0360/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[115.0,506.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.40515012478023,47.64126754676268]}},{"type":"Feature","properties":{"resourceCoords":[115.0,29.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.40512615696284,47.642566679035404]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0361/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p361","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.39"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0361/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0361","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"153.4,1034.8 168.6,1034.7 209.6,1155.4 252.6,1188.0 238.1,1288.8 306.4,1336.3 412.4,1355.9 805.5,1363.8 941.6,1358.0 1006.9,1314.8 994.7,939.4 1023.9,296.8 1002.0,1.0 988.8,1.0 988.6,7.0 741.2,1.0 202.2,1.0 118.7,215.0 127.2,239.9 137.7,285.6 141.0,316.3 141.0,366.4 137.5,398.3 184.6,527.1 146.6,526.2 140.4,529.7 129.1,559.5 128.1,705.8 135.0,706.0 137.7,892.7 125.1,892.6 129.0,936.8 144.8,984.7 157.4,1012.0 153.4,1034.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0361/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[194.0,1071.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.3963277,47.6368932]}},{"type":"Feature","properties":{"resourceCoords":[973.0,1337.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.3901501,47.6354459]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0362__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Spokane, Washington | 1952 | sanborn09331_018 p362 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"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":"4352.0"},{"label":"split_canvas_h","value":"5600.0"}],"created":"2026-10-17T03:42:33Z","modified":"2026-10-17T03:42:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0362__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0362","type":"ImageService3","width":1088,"height":1400},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"319.7,989.9 351.4,982.6 424.2,1038.6 424.0,1262.6 450.5,1323.0 540.4,1345.0 649.8,1342.7 861.3,1292.0 926.9,1292.1 930.8,1270.1 918.9,1243.8 904.0,1197.4 900.5,1154.8 912.6,1154.9 911.4,974.8 904.6,974.6 906.6,833.5 917.8,804.9 923.7,801.5 960.4,802.7 915.8,678.1 919.4,647.4 919.8,599.0 916.7,569.4 907.0,525.3 898.9,501.2 981.3,294.5 1012.4,294.7 1005.6,285.5 991.9,267.8 989.5,264.7 976.5,247.0 990.4,228.7 962.7,228.2 907.7,152.8 858.1,88.1 832.0,64.4 763.0,16.7 740.1,1.0 703.4,1.0 703.4,3.0 628.6,47.2 571.0,46.3 565.5,36.4 279.7,22.6 279.6,7.3 19.8,4.1 1.0,4.1 1.0,290.9 81.8,292.0 86.1,292.0 321.7,768.5 293.3,768.3 259.9,954.4 232.3,954.3 319.7,989.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284sm:g4284sm_g09331195203:09331_03_1952-0362__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[444.0,961.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.40063061312901,47.63892217091385]}},{"type":"Feature","properties":{"resourceCoords":[224.0,961.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-117.40244314175027,47.6389203129839]}}]}}]}