{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn00533_007.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Eureka, California | 1957 | mapsnap generated fit (2026-10-24)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-24"},{"label":"run","value":"corpus-v2.2"},{"label":"pages","value":"123"},{"label":"placed","value":"74"},{"label":"unplaced","value":"49"},{"label":"fit sources","value":"georef-snap 48, georef 18, snap:0 4, snap:1 3, snap:2 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"28 sheet(s) cut into 60 panels"},{"label":"unplaced pages","value":"p0__2 (tier 2, 40.78856,-124.15586 +/-2385m); p1 (tier 1, 40.80315,-124.15955 +/-280m); p10__1 (tier 1, 40.80544,-124.15806 +/-281m); p10__2 (tier 1, 40.80601,-124.15896 +/-132m); p11 (tier 1, 40.80295,-124.16121 +/-267m); p13__1 (tier 1, 40.80630,-124.15299 +/-115m); p13__2 (tier 1, 40.80596,-124.15428 +/-169m); p14 (tier 1, 40.80768,-124.15002 +/-256m); p17__2 (tier 1, 40.80684,-124.14770 +/-100m); p18__2 (tier 1, 40.80245,-124.15164 +/-108m); p18__3 (tier 1, 40.80217,-124.16832 +/-156m); p21__2 (tier 1, 40.79694,-124.17664 +/-100m); p22__2 (tier 1, 40.79574,-124.17015 +/-112m); p24 (tier 1, 40.79966,-124.16273 +/-271m); p29__2 (tier 1, 40.79411,-124.17966 +/-104m); p2__1 (tier 1, 40.80450,-124.16830 +/-229m); p2__2 (tier 1, 40.80368,-124.16799 +/-228m); p47__1 (tier 1, 40.79191,-124.15967 +/-197m); p47__3 (tier 1, 40.79076,-124.15648 +/-116m); p4__1 (tier 1, 40.80513,-124.16401 +/-230m); p61 (tier 1, 40.78732,-124.16025 +/-275m); p68__2 (tier 1, 40.77665,-124.16746 +/-100m); p7 (tier 3, 40.80034,-124.14115 +/-553m); p70 (tier 2, 40.78679,-124.15249 +/-1457m); p74 (tier 1, 40.88109,-123.98703 +/-245m); p75__1 (tier 3, 40.77833,-124.19296 +/-100m); p75__2 (tier 1, 40.77720,-124.19044 +/-100m); p76__1 (tier 3, 40.77611,-124.19060 +/-553m); p76__2 (tier 1, 40.77562,-124.19004 +/-100m); p77__1 (tier 1, 40.77171,-124.19432 +/-141m); p77__2 (tier 3, 40.77141,-124.19528 +/-553m); p78__1 (tier 1, 40.79172,-124.18039 +/-109m); p78__3 (tier 1, 40.79034,-124.17926 +/-100m); p79__2 (tier 1, 40.81831,-124.18489 +/-100m); p7A (tier 1, 40.78114,-124.15459 +/-269m); p7B (tier 1, 40.78115,-124.15336 +/-270m); p80 (tier 3, 40.81388,-124.18755 +/-553m); p81 (tier 1, 40.78674,-124.20086 +/-124m); p82 (tier 3, 40.79007,-124.20020 +/-553m); p83__1 (tier 4, 40.79291,-124.16416 +/-3364m); p83__2 (tier 4, 40.79291,-124.16416 +/-3364m); p83__3 (tier 4, 40.79291,-124.16416 +/-3364m); p84 (tier 1, 40.77413,-124.19137 +/-281m); p85__2 (tier 1, 40.78454,-124.18356 +/-227m); p87 (tier 4, 40.79291,-124.16416 +/-3364m); p88__1 (tier 2, 40.79706,-124.15904 +/-100m); p88__2 (tier 2, 40.79706,-124.15904 +/-100m); p8__1 (tier 1, 40.80416,-124.15426 +/-230m); p9__1 (tier 1, 40.80514,-124.16164 +/-224m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0012","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"802.8,129.8 639.5,166.8 84.3,175.2 66.2,1093.2 1.0,1099.7 1.0,1107.5 381.6,1110.4 681.4,1107.7 995.8,1108.8 1109.0,1048.1 1109.0,898.9 1109.0,871.0 984.3,795.1 983.4,440.5 987.2,306.2 903.8,224.2 897.0,206.1 902.9,166.2 836.8,166.6 796.3,166.1 802.8,129.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1181.0,484.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1557350628133,40.804216845586325]}},{"type":"Feature","properties":{"resourceCoords":[1867.0,1097.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.15290689518979,40.802912722607566]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0015","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"892.9,1280.0 1109.0,1273.5 1109.0,1261.2 1092.9,1245.7 1066.9,1212.3 1031.7,1145.4 1021.6,1108.1 1014.9,1035.9 1015.5,976.8 1046.9,918.5 1048.8,850.1 1042.4,766.4 1025.8,664.9 1057.2,664.8 1057.7,111.5 954.5,71.4 367.9,52.7 125.9,110.2 88.6,524.2 1.0,561.1 1.0,598.1 39.9,591.7 104.5,579.9 105.8,619.9 115.5,636.5 211.7,702.5 231.2,834.9 293.8,1182.5 429.2,1235.3 452.0,1358.0 823.3,1358.0 891.1,1346.5 892.9,1280.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[145.0,659.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.15677875415463,40.80471536613222]}},{"type":"Feature","properties":{"resourceCoords":[625.0,953.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.15503699152615,40.80391984580512]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0016","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"124.9,1006.7 150.7,881.3 92.1,160.6 170.7,91.5 323.5,36.6 565.4,25.4 1024.5,68.7 1025.0,361.1 1028.1,660.8 1027.7,958.0 1109.0,957.7 1109.0,961.9 1109.0,963.7 1064.8,964.2 1040.1,1261.1 1028.1,1261.0 1027.2,1146.7 725.2,1147.7 725.8,1224.2 725.7,1257.8 125.4,1258.1 124.9,1006.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0016/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15300254745338,40.807347356479646]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14899782010421,40.80732935223182]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14902673764101,40.80359186605574]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15303146499018,40.80360987030357]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0017__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p17 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.51"},{"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":"4440.0"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0017__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0017","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"740.3,228.8 740.0,228.8 739.9,213.9 711.9,54.4 657.2,24.7 106.9,42.4 52.8,122.5 16.2,756.7 71.5,901.2 42.2,996.2 82.2,1060.9 67.7,1140.8 162.3,1225.3 159.4,1255.7 455.0,1255.5 758.0,1252.6 1058.4,1253.4 1058.2,1171.2 1064.2,1171.2 1055.1,282.4 975.6,237.8 740.3,228.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0017__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14482296034431,40.80755878231484]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14484243086679,40.804538747522365]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14969311171441,40.8045569185633]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14967364119194,40.80757695335578]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0018__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p18 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"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":"4440.0"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0018__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0018","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"808.5,1358.0 765.9,1140.8 756.6,1093.7 803.5,1023.9 872.6,908.8 919.5,840.1 973.7,779.8 1070.1,689.9 1109.0,656.5 1109.0,546.5 1061.4,547.5 1045.7,503.3 585.5,462.8 583.3,457.9 579.8,457.9 579.6,449.6 523.6,325.6 538.6,78.4 503.4,44.5 411.9,38.1 412.0,50.2 296.9,52.6 301.9,354.5 378.9,352.9 412.7,352.6 421.0,952.7 423.1,1198.2 435.2,1243.0 494.4,1242.1 566.5,1233.5 603.5,1222.4 669.7,1185.5 702.5,1158.6 717.5,1142.0 729.9,1141.7 742.0,1358.0 808.5,1358.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0018__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[722.0,1140.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.15327333464789,40.80307320333008]}},{"type":"Feature","properties":{"resourceCoords":[130.0,2113.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.15674250322363,40.80474084205124]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p19","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.77"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0019","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"434.0,1264.1 109.5,1261.8 63.0,1266.9 26.5,1287.6 29.6,1269.7 43.7,1263.8 17.8,246.2 93.0,80.3 234.2,33.5 517.6,21.9 914.3,35.3 1048.0,89.5 1057.3,1263.6 434.0,1264.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0019/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[425.0,655.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1740623712984,40.80335739909577]}},{"type":"Feature","properties":{"resourceCoords":[425.0,949.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.17388250293443,40.80258224644527]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p20","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0020","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"85.8,53.8 70.9,80.8 57.0,132.8 22.8,344.0 24.1,418.8 1.0,542.8 1.0,657.5 166.8,656.3 167.9,677.1 64.0,770.7 67.7,949.7 68.1,949.6 121.8,949.9 244.8,947.0 279.9,952.8 265.6,964.5 232.8,1011.2 218.2,1046.6 180.6,1265.1 472.5,1315.2 495.8,1161.4 796.5,1138.1 796.4,1153.8 1088.5,1184.3 1089.7,1164.3 1079.9,639.5 1090.7,639.3 1078.6,19.2 478.1,26.6 165.5,28.1 120.7,33.5 85.8,53.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[181.0,1246.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.17401141499884,40.79827854224495]}},{"type":"Feature","properties":{"resourceCoords":[503.0,934.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.17303009382904,40.79927867387605]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0021__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p21 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.99"},{"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":"4440.0"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0021__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0021","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"146.4,32.4 117.2,66.6 78.1,42.2 44.0,100.8 41.2,1203.1 283.2,1181.1 284.1,1179.2 480.6,1177.7 480.8,1170.6 782.9,1198.0 782.9,1216.3 1077.2,1219.0 1077.6,895.6 1080.9,772.5 1078.6,622.9 1083.7,327.9 786.0,326.0 787.6,103.2 796.2,65.7 821.1,13.9 832.6,1.0 792.4,1.0 676.2,23.0 622.9,31.6 591.2,38.0 486.9,56.3 486.9,89.9 266.1,85.5 260.9,32.3 146.4,32.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0021__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[786.0,622.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1740029,40.7974075]}},{"type":"Feature","properties":{"resourceCoords":[786.0,326.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1740017,40.7982259]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0022__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p22 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"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":"4440.0"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0022__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0022","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1009.1,1110.3 1109.0,1110.7 1109.0,748.8 1010.8,652.7 1010.6,661.9 710.6,639.8 712.7,357.6 707.2,120.0 704.9,99.0 411.4,117.5 408.9,102.0 116.0,175.3 118.7,330.9 114.8,624.8 117.8,773.9 115.0,896.5 116.0,1218.6 413.0,1220.0 709.2,1222.5 1010.1,1222.8 1009.1,1110.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0022__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[413.0,331.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1718353,40.7982153]}},{"type":"Feature","properties":{"resourceCoords":[413.0,1220.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1718526,40.7957478]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p23","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0023","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"116.6,554.9 115.8,23.0 126.8,23.0 126.9,44.0 575.2,20.1 595.9,22.8 1098.0,22.6 1094.4,304.4 1109.0,304.4 1109.0,1266.7 1095.3,1286.7 1020.5,1286.4 652.9,1222.6 623.8,1216.5 615.2,1214.7 435.0,1358.0 387.9,1358.0 399.1,1298.9 317.9,1183.6 316.0,1192.7 19.6,1114.2 74.5,834.0 113.5,596.5 116.6,554.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0023/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.17153983983174,40.800350209872626]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16761165452273,40.80089724802341]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16673311345527,40.79723084273288]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.17066129876427,40.796683804582095]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p25","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0025/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0025","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"82.6,1261.0 82.6,1249.0 391.4,1252.7 1024.5,1255.0 1023.6,651.0 1026.2,385.6 1023.3,52.6 1023.1,41.0 974.6,25.5 821.2,41.9 820.7,52.2 349.4,51.4 277.4,1.0 1.0,1.0 1.0,1181.5 82.6,1261.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0025/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16504565526495,40.801334077721805]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16112086530255,40.8018872240676]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16023249440485,40.798224070709836]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16415728436725,40.79767092436404]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p26","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0026/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0026","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"132.5,652.6 134.1,388.0 130.1,56.0 165.1,55.6 266.6,87.7 660.8,48.1 660.9,55.8 1041.6,58.1 1042.0,349.5 1041.6,386.2 1041.6,652.0 1043.8,951.0 1044.3,1254.1 1008.8,1253.3 442.9,1251.9 291.8,1251.3 135.5,1254.9 132.5,652.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0026/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16189051787329,40.801790057183766]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15795149815435,40.802334337122204]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15707737215087,40.79865788090797]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16101639186981,40.79811360096953]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p27","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0027/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0027","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"95.2,1254.9 397.6,1252.3 692.8,1252.0 701.6,1227.9 1000.0,1230.7 1000.1,951.1 1000.6,951.1 999.8,496.4 1001.1,380.9 998.5,17.3 998.5,1.0 804.2,1.0 710.0,51.3 394.8,50.2 94.2,53.0 94.1,345.9 93.7,382.8 93.3,649.8 95.2,950.3 95.2,1254.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0027/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15852334279349,40.802240058764006]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15460436795989,40.80278583318575]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15372783212739,40.799128126012356]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15764680696098,40.79858235159061]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0028/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p28","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.61"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0028/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0028","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"727.6,1290.3 931.6,1294.4 937.3,1261.5 971.8,1255.3 981.2,1233.8 980.3,1065.8 1034.7,1017.5 1107.0,756.5 1057.2,551.5 1073.2,460.4 963.1,438.8 937.3,393.3 866.2,279.1 816.5,213.0 756.9,152.5 655.3,60.6 595.6,1.0 52.5,1.0 52.5,15.0 57.0,386.6 56.5,467.0 59.2,969.4 58.7,969.4 60.0,1249.2 397.2,1272.4 400.2,1218.5 417.1,1218.3 411.6,1358.0 463.5,1358.0 467.0,1303.9 731.0,1287.4 727.6,1290.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0028/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[917.0,354.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.15176856117613,40.802193045613784]}},{"type":"Feature","properties":{"resourceCoords":[1172.0,739.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1506440489002,40.80129690911193]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0029__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p29 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"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":"4440.0"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0029__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0029","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1060.5,1171.5 1056.9,684.6 1059.2,567.9 1053.6,411.0 1011.0,411.2 1014.7,71.8 814.5,75.9 813.6,77.9 567.4,103.5 569.9,347.4 491.0,407.8 491.0,410.5 491.0,425.3 484.9,425.2 477.5,425.2 468.4,425.1 397.7,479.1 84.7,493.4 8.9,763.0 59.0,1150.1 10.4,1177.2 1060.5,1171.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0029__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[659.0,438.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.17641377309829,40.794891985582275]}},{"type":"Feature","properties":{"resourceCoords":[748.0,1046.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.17612519457718,40.793239030743]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0030/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p30","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0030/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0030","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"129.3,703.0 131.9,588.4 127.1,434.3 85.3,434.4 90.3,93.9 392.9,118.7 393.0,137.0 687.6,137.0 986.0,137.0 984.4,432.9 986.6,584.4 987.1,1179.8 131.0,1181.1 129.3,703.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0030/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[393.0,137.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1740168,40.7957643]}},{"type":"Feature","properties":{"resourceCoords":[986.0,137.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1718526,40.7957478]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0031/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p31","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0031/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0031","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1079.8,1198.6 1085.2,603.3 1083.5,353.5 1085.7,106.8 68.3,95.8 53.1,103.8 38.5,166.4 23.4,436.1 56.9,551.8 1.0,556.5 1.0,586.3 48.6,582.0 183.1,590.9 202.9,680.2 198.1,1043.2 199.6,1190.1 1079.8,1198.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0031/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[495.0,593.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.17719212705947,40.79152129842197]}},{"type":"Feature","properties":{"resourceCoords":[1065.0,354.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.17508566095687,40.79219444773341]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0032/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p32","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0032/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0032","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"127.0,599.0 123.9,345.7 124.7,95.6 981.1,100.3 979.0,563.1 981.2,760.3 978.1,1206.2 124.8,1202.6 127.0,599.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0032/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[386.0,599.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1740638,40.7914942]}},{"type":"Feature","properties":{"resourceCoords":[127.0,599.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1750087,40.7914964]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0033/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p33","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0033/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0033","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1029.2,1174.0 1027.1,940.8 1026.6,717.0 1025.6,567.4 1028.0,113.3 997.6,113.4 856.4,1.0 721.5,1.0 722.9,114.0 417.7,114.7 117.3,113.2 115.3,411.9 117.3,564.8 116.8,1165.9 414.2,1165.9 1029.2,1174.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0033/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[117.0,416.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.17186321085029,40.794918980732724]}},{"type":"Feature","properties":{"resourceCoords":[117.0,118.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.17185397004168,40.79573457520574]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0034/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p34","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0034/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0034","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"132.5,757.0 131.2,560.4 135.6,98.8 429.5,101.8 1037.2,116.0 1034.6,435.9 1068.8,610.8 1033.3,608.3 1029.8,1208.5 872.7,1207.7 754.6,1204.6 421.2,1204.3 127.2,1201.7 132.5,757.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0034/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[132.0,601.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.17189699596612,40.791475610751114]}},{"type":"Feature","properties":{"resourceCoords":[132.0,358.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.17189852176682,40.79214857882294]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0035/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p35","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0035/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0035","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"94.6,1247.5 410.2,1248.4 737.5,1188.6 996.8,1148.6 942.5,827.1 904.8,611.4 888.2,530.0 800.9,14.7 681.4,36.2 675.5,1.0 591.2,1.0 596.0,29.4 585.4,52.6 513.1,64.8 147.7,63.8 118.6,62.7 110.0,62.4 1.0,184.8 1.0,590.5 78.0,654.1 107.8,654.7 96.5,1100.5 94.6,1247.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0035/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16898412339079,40.79754662443918]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16490725535769,40.79758214120288]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16484993438583,40.7937956282188]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16892680241892,40.7937601114551]}},{"type":"Feature","properties":{"resourceCoords":[380.0,743.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1675571,40.7954886]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0036/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p36","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0036/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0036","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"129.9,1289.5 433.8,1290.5 730.8,1279.9 863.6,1255.7 1037.2,1255.2 1034.0,652.4 1034.7,59.9 727.5,57.8 727.5,69.8 656.2,1.0 1.0,1.0 1.0,126.6 123.5,125.3 124.7,654.0 127.6,738.0 129.4,959.6 129.9,1289.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0036/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16656092410372,40.79781073826273]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16261363469292,40.79835168419142]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16174491664461,40.79466728280095]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16569220605541,40.79412633687227]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0037/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p37","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0037/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0037","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"64.7,643.5 67.1,47.9 700.6,48.9 857.5,45.6 1009.1,46.3 1009.3,951.2 1007.9,1252.4 700.0,1251.9 565.0,1247.6 382.6,1245.6 66.2,1249.6 64.7,643.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0037/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.1631111348087,40.7982486174514]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15918674952351,40.79879507891119]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15830916554921,40.795132091310805]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.1622335508344,40.794585629851014]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0038/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p38","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0038/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0038","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"734.0,1253.6 129.4,1259.6 127.8,959.1 118.3,56.1 684.9,52.6 720.5,53.0 1021.9,47.4 1022.1,197.1 1026.0,352.1 1024.2,622.5 1025.1,801.9 1029.1,950.1 1030.5,1099.9 1036.8,1247.7 734.0,1253.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0038/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15996776326769,40.79871741061863]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15602769012008,40.79923429293981]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15519759992861,40.795556700172234]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15913767307622,40.795039817851055]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0039/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p39","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.39"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0039/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0039","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"168.0,1253.2 298.8,1226.2 451.8,1269.9 600.2,1268.2 603.0,1255.4 680.0,1255.8 690.5,1255.8 937.7,1257.8 975.2,1258.1 1036.5,1.0 1019.9,1.0 1016.5,52.6 685.4,26.2 685.4,31.9 387.7,27.9 378.8,51.9 84.4,51.0 82.5,200.8 84.1,356.1 78.4,626.7 76.7,806.2 78.6,954.7 77.8,1104.7 82.0,1252.8 168.0,1253.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0039/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15664374793931,40.79915985491835]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15271828581987,40.799719500184814]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15181951620941,40.796055561459596]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15574497832885,40.79549591619313]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p3 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.54"},{"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":"2252.0"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0003","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"272.7,1357.7 562.0,1358.0 562.0,1222.3 554.2,166.3 172.8,104.7 173.2,489.4 145.8,489.1 143.8,1128.4 304.6,1309.0 269.6,1334.2 272.7,1357.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16868155065542,40.80633361074441]}},{"type":"Feature","properties":{"resourceCoords":[563.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16668068540014,40.80661601947665]}},{"type":"Feature","properties":{"resourceCoords":[563.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.1657864095775,40.80293433472884]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16778727483279,40.8026519259966]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0003__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p3 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.24"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2212.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2228.0"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0003__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0003","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1109.0,1056.6 1057.0,1054.4 1038.2,730.0 986.6,716.4 993.9,498.6 1053.3,494.0 1042.4,122.3 744.3,91.5 664.2,131.5 588.0,118.7 577.7,151.0 554.1,147.1 562.2,1216.7 563.0,1358.0 863.2,1358.0 899.8,1084.9 1109.0,1081.8 1109.0,1056.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0003__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[553.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16641597881569,40.806717645310925]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16438712854027,40.806977894235786]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.1635556395403,40.80321126433461]}},{"type":"Feature","properties":{"resourceCoords":[553.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16558448981573,40.80295101540975]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0040__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p40 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.66"},{"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":"4440.0"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0040__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0040","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"50.2,971.7 61.6,1233.9 116.8,1284.0 230.1,1303.3 766.7,1282.7 766.8,1283.1 766.3,1263.7 918.0,1280.9 918.3,1296.0 1083.0,1279.8 1082.0,843.2 1106.1,727.3 1079.6,151.6 1030.9,66.9 888.6,63.1 833.8,27.6 728.2,22.9 613.8,57.6 444.7,64.2 368.1,39.2 365.0,32.7 355.7,164.1 334.4,192.4 351.0,272.4 348.6,283.6 332.8,289.9 333.2,306.1 330.6,306.7 226.4,325.5 219.7,326.7 112.6,355.4 116.1,381.6 91.3,386.6 180.5,939.2 42.4,967.6 1.0,976.3 1.0,982.9 50.2,971.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0040__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[639.0,250.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.14890790641624,40.79998812406566]}},{"type":"Feature","properties":{"resourceCoords":[911.0,470.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.14697126974643,40.79874113004203]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0040__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p40 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.20"},{"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":"1332.8"},{"label":"split_canvas_h","value":"1465.2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0040__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0040","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"321.8,181.3 323.4,152.6 35.4,98.0 33.6,134.8 68.2,285.6 26.0,302.9 88.6,347.5 269.4,314.6 318.6,181.3 321.8,181.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0040__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":[-124.14831804730908,40.7946724111352]}},{"type":"Feature","properties":{"resourceCoords":[333.2,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14705850961045,40.79472141489968]}},{"type":"Feature","properties":{"resourceCoords":[333.2,366.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14698786155692,40.793666022122544]}},{"type":"Feature","properties":{"resourceCoords":[0.0,366.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14824739925557,40.79361701835806]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0041/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p41","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0041/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0041","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"153.6,1057.1 450.6,1122.5 741.2,1183.2 1039.0,1242.6 1042.0,1207.7 1045.4,1042.2 1043.3,895.0 1049.4,742.6 1048.0,598.7 1052.9,446.9 1052.7,301.6 1058.7,150.6 796.1,142.7 462.8,142.0 152.2,83.5 108.1,299.7 63.8,525.2 1.0,833.0 1.0,1016.0 153.6,1057.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0041/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[154.0,1041.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.16789813554972,40.79146656591096]}},{"type":"Feature","properties":{"resourceCoords":[154.0,740.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.16811169658457,40.79228649899289]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0042/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p42","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0042/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0042","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"136.2,1121.6 137.0,955.0 132.5,806.7 136.2,653.2 132.3,508.3 134.9,355.4 132.2,209.1 135.9,56.9 439.4,58.5 736.1,48.5 868.9,24.6 1042.3,24.5 1040.2,319.9 1041.2,470.5 1045.8,623.3 1044.1,914.1 1053.6,914.3 1109.0,1013.2 1109.0,1319.5 1040.4,1350.8 1044.7,1328.0 733.4,1271.5 733.9,1268.9 133.7,1156.8 136.2,1121.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0042/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16579522600645,40.79446552409701]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16184489563386,40.79501297724624]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16096576782078,40.79132556823998]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16491609819337,40.79077811509075]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0043/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p43","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0043/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0043","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"66.8,1011.2 57.3,1010.9 61.6,720.0 58.4,567.2 58.7,416.5 63.4,121.0 377.8,119.6 559.1,123.0 693.2,128.4 999.3,131.3 999.9,423.9 952.5,423.8 969.7,1225.3 957.3,1223.0 951.3,1249.0 791.6,1358.0 120.2,1358.0 121.4,1110.7 66.8,1011.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0043/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16237719454043,40.795208102621956]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.1584346813663,40.79578195481431]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15751315228302,40.79210187609805]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16145566545714,40.7915280239057]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0044/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p44","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.49"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0044/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0044","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"37.4,367.8 84.8,367.8 83.6,74.5 687.2,78.3 989.6,77.3 1075.4,77.9 1086.0,1111.8 1046.3,1269.0 653.2,1194.8 635.3,1253.8 238.8,1206.0 191.9,1196.7 56.2,1171.2 37.4,367.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0044/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15908502008735,40.79552792562465]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15515018235668,40.796094132241016]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15424093313898,40.79242120955274]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15817577086965,40.79185500293637]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0045/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p45","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.82"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0045/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0045","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"11.9,971.6 13.4,596.8 12.3,17.1 200.3,28.9 494.8,33.7 782.2,35.1 1076.2,34.0 1074.1,194.2 1074.8,661.3 1073.5,1280.6 491.6,1285.0 489.9,1244.5 11.9,1266.7 11.9,971.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0045/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[207.0,649.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.16787716663914,40.789644236348416]}},{"type":"Feature","properties":{"resourceCoords":[207.0,356.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.16787044469729,40.79048446157903]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0046/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p46","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.84"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0046/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0046","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"341.8,1274.0 408.7,1272.6 469.7,1321.3 470.5,1358.0 1083.7,1358.0 1064.0,1265.5 1083.6,1265.2 1089.2,957.5 1087.1,642.4 1077.1,642.5 1085.6,324.3 1043.9,325.4 1109.0,35.0 1109.0,1.0 978.1,1.0 934.5,32.4 934.3,9.9 627.7,14.7 627.6,12.2 35.9,18.4 35.4,179.9 40.4,650.7 45.0,1274.8 189.5,1273.5 341.8,1274.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0046/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16470382636064,40.791446712201754]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16056201505509,40.79139782474037]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16064051701201,40.78753148273443]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16478232831756,40.78758037019581]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0047__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p47 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.34"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2654.4"},{"label":"split_canvas_w","value":"3194.4"},{"label":"split_canvas_h","value":"2781.6"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0047__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0047","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,808.1 1.0,1075.6 61.9,1135.8 61.7,1178.2 357.5,1252.2 359.0,1358.0 386.3,1358.0 377.7,1255.0 623.7,1258.5 702.1,1199.5 701.5,1092.0 760.3,1042.8 764.0,818.1 650.5,765.0 658.2,689.3 261.4,717.9 213.8,717.8 63.7,718.7 62.8,745.3 1.0,808.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0047__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,663.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15837712848838,40.79254452446015]}},{"type":"Feature","properties":{"resourceCoords":[798.6,663.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15548516796372,40.79253218540405]}},{"type":"Feature","properties":{"resourceCoords":[798.6,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15549926540935,40.79061148869717]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15839122593401,40.790623827753265]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0048/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p48","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.77"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0048/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0048","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"62.9,298.2 49.2,622.9 59.4,623.0 56.6,944.7 46.1,1258.8 26.2,1258.8 45.6,1358.0 146.5,1358.0 219.3,1285.0 531.4,1249.2 531.6,1266.0 840.5,1270.1 840.5,1274.4 1109.0,1254.8 1109.0,1244.0 1090.7,1243.1 1105.2,1030.0 1032.5,836.4 1090.7,579.8 1064.7,246.7 1037.7,246.1 1036.8,141.3 745.6,66.3 745.9,24.3 722.8,1.0 91.7,1.0 20.5,298.6 62.9,298.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0048/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16090260043444,40.79130702344937]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15682546358903,40.791306821903994]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15682578886576,40.78752005925243]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16090292571117,40.787520260797805]}},{"type":"Feature","properties":{"resourceCoords":[1038.0,307.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.15709,40.7904514]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0049/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p49","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.69"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0049/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0049","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1061.6,1210.8 732.1,1197.8 728.0,1206.2 255.5,1212.4 257.3,1208.2 101.8,1131.9 93.9,1237.9 27.1,1198.9 79.9,1200.6 79.3,1065.6 20.4,916.4 52.7,501.6 22.3,202.8 84.9,77.2 172.2,33.5 420.4,18.7 420.2,29.1 748.1,80.2 755.9,63.8 1055.8,71.1 1056.2,193.7 1056.8,344.0 1053.2,364.6 966.9,656.1 922.6,778.3 1064.0,787.2 1063.7,826.0 1061.6,1210.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0049/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.18215286888932,40.789989096335866]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.17807977462742,40.789976146870885]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.17810056804491,40.78617387322978]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.18217366230681,40.78618682269476]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p4 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.73"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2192.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2247.2"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0004__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0004","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"659.1,1351.7 659.2,1358.0 1078.0,1358.0 1075.0,1335.0 1098.4,1317.9 1100.0,1315.0 1102.4,1315.0 1109.0,1310.2 952.2,1133.6 953.5,506.6 980.2,506.8 979.4,129.4 752.0,93.3 617.2,137.0 632.3,951.5 659.2,951.4 659.1,1351.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[659.1,803.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1687185,40.8041141]}},{"type":"Feature","properties":{"resourceCoords":[659.1,1095.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1685237,40.8033074]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0050/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p50","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0050/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0050","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"763.9,1194.3 764.0,1180.8 454.8,1173.2 454.8,1159.3 157.6,1116.8 159.1,853.0 159.4,812.8 12.8,803.5 58.7,676.8 148.2,374.4 152.0,353.1 151.4,197.2 150.8,44.3 1071.3,47.2 1070.5,351.8 1068.4,1147.3 763.9,1194.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0050/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.1788127029123,40.78996828662747]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.17488573730091,40.78995609684307]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.17490531083162,40.78629022813589]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.178832276443,40.78630241792029]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0051/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p51","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0051/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0051","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"996.8,1157.0 702.5,1176.8 702.2,1167.0 136.3,1162.8 134.4,425.3 133.6,127.6 993.7,125.8 996.1,424.4 993.0,832.9 996.8,1133.4 996.8,1157.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0051/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.17550247463322,40.7901846528185]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.17148535636834,40.79015621304303]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.1715310230734,40.786406188938756]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.17554814133828,40.786434628714225]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0052/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p52","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0052/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0052","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"88.9,838.5 94.2,427.1 93.5,126.2 390.7,127.2 727.9,125.6 847.2,128.1 1006.1,128.1 1003.6,520.5 1002.9,847.1 1001.2,1147.4 543.2,1146.0 390.0,1143.3 91.0,1141.3 88.9,838.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0052/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[106.0,846.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.17187497201304,40.78784035831388]}},{"type":"Feature","properties":{"resourceCoords":[106.0,1138.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.17187896064706,40.78704060610096]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0053/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p53","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0053/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0053","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1062.9,1070.7 1062.1,739.9 1074.8,242.3 1075.0,184.9 1075.6,84.4 745.8,71.0 741.8,79.5 268.9,85.5 270.6,81.3 115.0,4.3 76.5,524.5 1.0,667.2 1.0,830.2 22.9,827.0 87.8,1288.3 913.8,1251.3 913.4,1274.2 1063.2,1070.7 1062.9,1070.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0053/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[770.0,1069.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1794095,40.7838586]}},{"type":"Feature","properties":{"resourceCoords":[678.0,213.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1797354,40.7862359]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0054/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p54","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0054/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0054","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"146.2,1204.1 143.7,869.8 154.2,366.9 154.0,308.9 154.2,74.3 444.2,114.8 444.3,128.5 745.9,134.6 745.9,147.8 1042.6,100.3 1043.0,308.1 1044.7,1200.2 746.1,1202.3 480.0,1202.1 296.2,1204.8 146.2,1204.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0054/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[447.0,898.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.17723488577353,40.784684677784576]}},{"type":"Feature","properties":{"resourceCoords":[148.0,898.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.17831958889876,40.78469172549494]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0055/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p55","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0055/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0055","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"96.0,65.0 653.6,72.8 653.9,82.6 943.9,64.8 942.0,340.0 938.2,630.8 936.5,1075.2 936.7,1273.0 91.6,1226.1 91.8,1191.2 95.1,310.1 96.0,65.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0055/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[95.0,340.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1750551,40.7862079]}},{"type":"Feature","properties":{"resourceCoords":[942.0,340.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.171944,40.7862012]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0056/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p56","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0056/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0056","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"148.9,300.6 150.1,68.9 1018.4,118.0 1018.5,373.4 1017.6,635.9 1013.0,819.8 1011.8,1243.2 1009.9,1271.8 693.5,1270.8 144.2,1266.7 148.9,300.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0056/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[420.0,341.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.17411360900957,40.783005744276466]}},{"type":"Feature","properties":{"resourceCoords":[715.0,341.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1730590496278,40.783004347587024]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0057/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p57","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0057/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0057","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"80.9,1079.3 75.6,630.5 74.7,336.8 72.0,35.2 369.4,32.8 521.9,33.1 977.3,27.7 980.2,293.3 986.4,627.2 990.1,1107.7 991.7,1224.3 686.5,1220.2 381.3,1223.1 84.1,1265.9 80.9,1079.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0057/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[82.0,631.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.17193749221177,40.78539076355864]}},{"type":"Feature","properties":{"resourceCoords":[82.0,50.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1718979395595,40.78699030869254]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0058/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p58","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0058/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0058","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"396.2,1266.1 221.2,1263.9 90.8,1265.2 92.6,1236.7 92.0,812.9 95.9,628.8 95.6,366.1 94.5,97.2 397.6,57.5 708.4,58.5 1018.9,66.8 1019.2,328.8 1020.7,366.5 1021.1,401.2 1011.2,777.5 1011.2,815.5 963.2,815.4 970.4,1237.1 969.9,1267.6 396.2,1266.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0058/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[966.0,1242.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.16888374395596,40.78053242669978]}},{"type":"Feature","properties":{"resourceCoords":[107.0,809.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.17194309641079,40.78171719136897]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0059/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p59","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0059/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0059","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"696.0,1199.1 430.8,1201.2 132.7,1203.1 115.2,1203.3 87.2,703.2 129.2,701.0 118.5,92.0 420.2,89.5 1018.0,84.1 1022.5,358.1 1020.8,415.2 1024.0,662.2 1025.2,945.0 1029.2,1193.8 696.0,1199.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0059/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16427021804724,40.788140866577265]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.1643346082768,40.7850789283003]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16925113697788,40.78513903886147]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16918674674831,40.78820097713844]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p5 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.47"},{"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":"2239.2"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0005","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"149.1,490.2 157.0,1093.2 469.9,1089.7 464.9,815.9 464.6,786.8 558.8,786.3 558.8,484.2 551.4,484.3 477.9,182.9 454.0,183.6 413.5,183.7 295.6,183.8 145.2,185.8 148.1,415.1 149.1,490.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16511723783341,40.78833412978934]}},{"type":"Feature","properties":{"resourceCoords":[559.8,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.1631091890655,40.78830308877119]}},{"type":"Feature","properties":{"resourceCoords":[559.8,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16320798303717,40.784587371782116]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16521603180509,40.78461841280027]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0005__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p5 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.55"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2239.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2200.8"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0005__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0005","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1074.1,492.3 1066.2,795.4 971.7,793.4 971.3,822.6 969.3,1082.8 1109.0,987.1 1109.0,239.8 1046.7,187.8 1000.9,187.8 1066.6,492.1 1074.1,492.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0005__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[559.8,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16499814229432,40.78831207002642]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16302961996116,40.788320720903485]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16300163716843,40.78461864646798]}},{"type":"Feature","properties":{"resourceCoords":[559.8,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16497015950158,40.78460999559092]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0060/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p60","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.68"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0060/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0060","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1024.5,400.2 1028.4,1046.6 1030.7,1197.4 994.1,1199.3 624.4,1203.7 149.3,1206.3 145.2,960.0 143.8,679.8 140.4,435.1 142.0,378.5 137.4,107.1 577.1,102.3 1020.7,94.1 1024.5,400.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0060/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16423382348398,40.78571396621407]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16430191820663,40.7826228745609]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16926507611005,40.7826864457304]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.1691969813874,40.78577753738357]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0062/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p62","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0062/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0062","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1009.7,1262.5 1010.0,1114.7 1016.1,810.7 1017.3,342.0 1015.3,26.1 566.5,32.3 417.4,32.0 125.7,28.5 1.0,97.5 1.0,804.4 108.0,957.0 122.5,956.9 121.6,1266.0 563.6,1265.9 1009.7,1262.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0062/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16003132993211,40.7856522370779]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16005548535382,40.78257707917823]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16499304029077,40.78259963003567]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16496888486905,40.785674787935335]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0063/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p63","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.76"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0063/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0063","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"838.5,1358.0 166.9,1358.0 166.9,1327.7 92.9,1253.2 57.5,938.5 74.3,938.4 78.9,627.0 83.2,627.0 64.1,356.4 53.2,356.4 67.3,86.3 101.3,52.1 976.4,42.6 984.3,334.6 990.5,634.7 984.4,634.7 999.1,947.0 993.1,947.0 1020.9,1266.8 964.5,1265.6 838.6,1334.0 838.5,1358.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0063/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15553122985438,40.78798996458005]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15552475890561,40.78490580678326]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16047695276772,40.78489976590797]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16048342371649,40.787983923704765]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0064/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p64","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0064/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0064","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"566.1,1270.7 417.0,1270.8 181.5,1268.5 150.4,947.8 156.5,947.7 138.6,634.3 144.7,634.3 135.5,333.1 124.6,40.0 663.2,28.8 827.9,27.9 1020.5,63.1 1063.0,485.0 1109.0,485.0 1109.0,534.5 1032.7,636.3 1013.8,636.2 1016.5,949.4 1015.4,1263.4 566.1,1270.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0064/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15553175999194,40.78562086044212]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15556543405535,40.78254882417497]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16049800007247,40.78258026123418]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16046432600906,40.785652297501336]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0065/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p65","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0065/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0065","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1007.5,671.1 1003.3,1110.5 1003.3,1213.7 973.4,1212.9 560.5,1217.4 560.9,1170.4 523.7,1170.2 155.3,1158.2 121.3,1158.3 121.6,1007.3 128.9,360.2 130.4,53.8 569.9,60.6 1011.5,64.3 1007.5,671.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0065/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[123.0,905.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1677458,40.7828953]}},{"type":"Feature","properties":{"resourceCoords":[563.0,905.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1677451,40.7816798]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0066/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p66","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0066/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0066","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"36.7,1147.4 61.2,237.1 213.8,33.8 362.8,36.8 545.7,36.7 810.5,40.8 1107.7,42.9 1104.3,305.3 1092.4,1252.6 794.3,1246.8 498.1,1237.2 90.0,1230.8 36.7,1147.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0066/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[511.0,638.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.17723796445644,40.782188268122525]}},{"type":"Feature","properties":{"resourceCoords":[1097.0,341.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.17510829475908,40.78301771975375]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0067/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p67","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.64"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0067/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0067","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"246.0,15.6 397.2,17.6 549.3,17.6 824.1,16.4 982.4,15.1 1030.1,14.2 1038.1,445.8 1050.8,445.5 1053.7,723.0 1036.3,722.9 1036.1,1035.3 1038.7,1035.3 1032.2,1268.7 824.4,1202.5 592.5,1210.7 580.3,1225.8 450.4,1215.0 216.6,1255.6 86.7,1242.4 53.0,1143.1 17.7,560.2 30.8,53.9 38.2,45.5 37.8,16.4 246.0,15.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0067/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[888.0,452.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.17272694500775,40.77812628796511]}},{"type":"Feature","properties":{"resourceCoords":[888.0,1026.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1727821791251,40.775020522599824]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0068__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p68 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.61"},{"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":"4440.0"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0068__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0068","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"83.7,1258.6 100.7,1264.3 433.8,1259.7 453.4,1050.6 485.0,1006.9 511.9,839.2 529.0,822.1 529.0,821.2 529.9,821.2 531.3,819.8 874.1,817.6 874.1,818.3 876.0,818.3 876.0,857.2 883.7,1016.9 876.0,1031.2 876.0,1032.0 875.5,1032.0 866.6,1048.5 747.5,1058.1 725.5,1184.5 745.0,1255.0 1082.8,1272.2 1085.3,1230.9 1107.2,1213.9 1102.6,810.5 1107.5,810.5 1051.3,333.7 1052.9,44.0 750.9,41.9 532.2,39.8 480.8,39.8 201.3,37.2 116.0,35.5 99.0,35.6 100.8,456.4 113.2,456.3 112.1,726.9 95.2,726.5 90.7,1031.1 93.2,1031.1 83.7,1258.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0068__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[113.0,496.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1715641,40.7779294]}},{"type":"Feature","properties":{"resourceCoords":[597.0,306.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1680176,40.7789858]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0069/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p69","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.48"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0069/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0069","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"72.8,767.3 71.6,476.1 71.4,255.0 72.8,35.1 146.9,35.0 299.5,37.6 534.7,37.5 693.3,36.0 850.7,36.4 1007.7,34.9 1007.7,44.4 1058.8,82.7 1083.6,83.1 1084.3,1227.7 1040.0,1228.0 1018.1,1255.1 877.9,1258.8 237.9,1264.7 203.3,1245.4 134.4,1246.0 72.8,767.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0069/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16516450431898,40.78307326413261]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15712906889121,40.78301759635549]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.15721844517134,40.77551547688626]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16525388059911,40.77557114466338]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p6 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.55"},{"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":"2242.4"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0006","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"512.4,1082.6 509.6,1358.0 559.6,1358.0 559.6,1273.5 553.9,463.4 531.0,463.4 433.6,463.7 433.5,510.7 433.8,604.2 433.9,625.2 76.6,625.0 77.9,753.1 110.5,763.9 59.0,1078.2 1.0,1081.4 1.0,1084.2 20.2,1084.1 512.4,1082.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.17019367552578,40.80355583363991]}},{"type":"Feature","properties":{"resourceCoords":[560.6,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16816839531197,40.803833596943896]}},{"type":"Feature","properties":{"resourceCoords":[560.6,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16728572650105,40.80009356424554]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16931100671486,40.79981580094156]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0006__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p6 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.48"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2203.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2236.4"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0006__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0006","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1066.9,462.4 1089.8,462.5 1083.2,440.4 1097.4,432.2 969.4,431.9 969.3,424.5 969.6,22.7 942.4,22.8 944.4,129.7 609.9,126.7 612.5,621.9 969.2,623.6 969.2,602.6 969.3,557.4 969.3,509.2 969.7,462.2 1066.9,462.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0006__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[550.9,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.17014822165093,40.80355358536608]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16812663329006,40.80383806238775]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16722101551441,40.80009818088349]}},{"type":"Feature","properties":{"resourceCoords":[550.9,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.16924260387529,40.79981370386182]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0071__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p71 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.63"},{"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":"2208.8"},{"label":"split_canvas_h","value":"1449.2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0071__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0071","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"261.0,302.8 271.2,351.1 508.9,348.8 505.7,29.0 385.8,165.8 206.1,148.2 109.9,236.4 27.4,232.4 27.9,285.7 261.0,302.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0071__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14387848937815,40.77890131944535]}},{"type":"Feature","properties":{"resourceCoords":[552.2,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14185103988645,40.77888607039584]}},{"type":"Feature","properties":{"resourceCoords":[552.2,362.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14186422233085,40.77787743116653]}},{"type":"Feature","properties":{"resourceCoords":[0.0,362.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14389167182256,40.77789268021604]}},{"type":"Feature","properties":{"resourceCoords":[496.2,79.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1420596,40.7786675]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0071__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p71 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.16"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2208.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2231.2"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0071__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0071","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1080.4,1271.4 1075.1,1237.2 1071.5,178.7 1036.0,54.6 1036.8,115.8 790.0,158.0 788.1,111.6 626.9,220.4 631.4,233.8 600.5,1015.4 552.2,1008.7 552.2,1021.9 826.0,1173.0 825.0,1145.7 1080.4,1271.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0071__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[690.1,1123.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.141365,40.7973209]}},{"type":"Feature","properties":{"resourceCoords":[826.1,1177.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1408428,40.7971443]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0071__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p71 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.60"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"1449.2"},{"label":"split_canvas_w","value":"2208.8"},{"label":"split_canvas_h","value":"3986.8"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0071__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0071","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"551.2,1172.9 551.2,1103.3 520.0,980.2 544.6,587.9 518.8,447.9 460.1,409.8 285.1,382.8 241.9,426.8 23.0,385.8 22.0,1145.7 95.7,1217.5 111.5,1270.6 286.7,1160.4 287.2,1209.7 551.2,1172.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0071__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,362.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.1418345827465,40.80253220768841]}},{"type":"Feature","properties":{"resourceCoords":[552.2,362.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.1398071668826,40.802514572375834]}},{"type":"Feature","properties":{"resourceCoords":[552.2,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.13984915466362,40.79973668112652]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14187657052751,40.79975431643909]}},{"type":"Feature","properties":{"resourceCoords":[285.1,580.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.140797,40.8019157]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0072/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p72","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0072/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0072","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1108.5,752.5 1107.6,1203.3 1059.2,1272.3 187.3,1280.1 49.6,1227.4 29.4,51.8 283.8,15.2 502.0,52.9 501.6,67.0 790.2,239.2 790.2,209.8 1060.0,353.9 1108.5,752.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0072/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[786.0,243.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.14085826971609,40.797145592748414]}},{"type":"Feature","properties":{"resourceCoords":[159.0,849.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.14315846676124,40.7954923477094]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0073__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p73 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"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":"4440.0"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0073__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0073","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1087.8,699.9 1084.1,350.8 484.6,347.3 484.5,344.7 481.2,344.7 480.8,283.3 472.6,145.8 421.9,33.1 75.1,31.9 31.0,81.6 28.1,278.4 63.2,1252.0 1074.2,1285.6 1105.8,990.1 1109.0,990.5 1109.0,980.5 948.4,981.2 947.0,701.8 1087.8,699.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0073__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14929262040965,40.78152691076351]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14530100335378,40.78149464544627]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14535280594862,40.77776792985254]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.1493444230045,40.777800195169775]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0073__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p73 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.78"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1916.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2523.6"},{"label":"split_canvas_h","value":"1395.6"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0073__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0073","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"625.2,17.0 487.3,23.9 498.6,297.9 656.0,291.4 657.4,301.3 1078.3,338.9 1084.2,48.7 979.9,5.3 839.1,11.9 782.9,58.0 626.1,36.4 625.2,17.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0073__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[479.1,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14593951827918,40.779642653458815]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14362989998116,40.77955975762496]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,348.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14369002398159,40.778585627033]}},{"type":"Feature","properties":{"resourceCoords":[479.1,348.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.1459996422796,40.77866852286686]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0078__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p78 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.95"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1402.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3037.6"},{"label":"split_canvas_h","value":"2964.0"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0078__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0078","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"976.9,524.3 977.9,161.9 957.1,73.0 822.9,65.5 774.5,70.5 774.2,40.7 662.8,51.2 672.0,3.0 391.0,1.0 359.8,1.0 365.1,645.0 351.3,645.8 351.2,656.2 675.8,705.9 683.4,689.4 980.1,695.5 979.9,670.9 976.9,524.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0078__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[749.3,73.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1791169,40.79153]}},{"type":"Feature","properties":{"resourceCoords":[957.1,73.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.178346,40.7915252]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0079__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p79 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.09"},{"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":"4440.0"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0079__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0079","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"339.0,433.0 57.2,471.1 45.8,1000.1 114.2,1180.0 975.4,1284.0 1049.4,1231.9 1085.5,735.5 1032.5,340.8 1056.3,153.5 997.4,55.9 572.8,32.2 405.1,87.1 400.1,253.8 339.0,332.0 339.0,395.0 339.0,400.9 339.0,433.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0079__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.18236442385103,40.81946811336314]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.18354161622723,40.816456061628635]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.18838042110703,40.817554472224636]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.18720322873081,40.820566523959144]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0085__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p85 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.80"},{"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":"2336.4"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0085__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0085","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"87.3,97.5 105.5,233.0 54.1,336.6 38.8,643.9 89.1,957.3 56.9,1055.2 121.2,1135.2 102.6,1160.9 73.8,1140.8 81.6,1220.6 140.4,1253.3 512.1,1252.5 553.1,721.9 579.3,700.9 578.6,609.6 534.0,533.5 526.7,370.6 345.0,1.0 265.2,1.0 87.3,97.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0085__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.18291573335618,40.78701376064691]}},{"type":"Feature","properties":{"resourceCoords":[584.1,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.18107007920067,40.78618449482431]}},{"type":"Feature","properties":{"resourceCoords":[584.1,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.18361388561226,40.782926328480535]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.18545953976778,40.78375559430313]}},{"type":"Feature","properties":{"resourceCoords":[540.1,770.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.182651,40.7844002]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0086/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p86","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.52"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0086/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0086","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"514.8,1286.6 84.1,1321.9 34.5,1282.7 28.1,614.1 72.3,486.1 47.4,402.6 86.9,348.5 46.7,73.2 76.4,92.8 180.2,23.8 1051.7,26.8 1106.9,375.7 1059.4,1314.9 514.8,1286.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0086/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14343552038237,40.79038883173732]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.13944106519271,40.79038215706034]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.13945178302166,40.78665331541087]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-124.14344623821131,40.78665999008785]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0008__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p8 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.93"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2274.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2165.6"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0008__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0008","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"616.9,193.7 573.7,497.1 568.6,497.1 568.6,1050.5 651.2,1107.7 1109.0,1104.2 1109.0,1094.1 1058.7,1100.0 1008.2,1081.3 1052.8,883.6 1048.1,633.3 1009.1,577.5 1050.3,398.8 1035.8,259.2 967.8,173.8 825.9,166.7 825.6,191.9 616.9,193.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0008__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[687.5,495.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.164038,40.8030763]}},{"type":"Feature","properties":{"resourceCoords":[687.5,193.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1642321,40.8039089]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0009__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, California | 1957 | sanborn00533_007 p9 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.65"},{"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":"4440.0"},{"label":"split_canvas_h","value":"2009.6"}],"created":"2026-10-24T15:30:07Z","modified":"2026-10-24T15:30:07Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0009__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0009","type":"ImageService3","width":1110,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"962.9,484.7 1015.5,265.5 982.0,258.2 986.5,150.1 987.0,117.4 803.3,111.7 713.6,1.0 691.5,1.0 683.9,171.2 571.5,165.4 440.4,133.8 363.6,131.1 148.9,84.8 96.4,67.7 69.5,51.0 51.9,47.1 69.0,94.0 22.4,191.0 128.7,265.2 120.9,324.8 533.6,373.8 710.1,453.1 910.2,471.2 908.7,478.2 962.9,484.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd436m:g4364m:g4364em:g4364em_g005331957:00533_1957-0009__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[683.0,190.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.1750828,40.7998023]}},{"type":"Feature","properties":{"resourceCoords":[982.0,258.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-124.175093,40.7989724]}}]}}]}