{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn07319_007.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Astoria, Oregon | 1956 | 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":"86"},{"label":"placed","value":"52"},{"label":"unplaced","value":"34"},{"label":"fit sources","value":"georef 36, georef-snap 16"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"16 sheet(s) cut into 41 panels"},{"label":"unplaced pages","value":"p11__1 (tier 1, 46.18722,-123.83119 +/-156m); p19__1 (tier 2, 46.19170,-123.81576 +/-2698m); p19__2 (tier 1, 46.19722,-123.78150 +/-230m); p1__1 (tier 1, 46.17495,-123.84149 +/-104m); p1__3 (tier 1, 46.17484,-123.84133 +/-198m); p2 (tier 2, 46.18755,-123.82685 +/-2156m); p31__1 (tier 2, 46.18894,-123.82284 +/-2593m); p31__2 (tier 1, 46.19034,-123.81481 +/-272m); p39 (tier 1, 46.19511,-123.80017 +/-263m); p3__1 (tier 1, 46.19009,-123.81038 +/-144m); p40__1 (tier 1, 46.19499,-123.80078 +/-283m); p40__2 (tier 1, 46.18955,-123.80116 +/-122m); p44 (tier 1, 46.18883,-123.80483 +/-270m); p46__2 (tier 1, 46.18466,-123.83624 +/-100m); p46__3 (tier 1, 46.17812,-123.83322 +/-100m); p49__1 (tier 4, 46.18771,-123.82388 +/-3903m); p49__2 (tier 4, 46.18771,-123.82388 +/-3903m); p51__1 (tier 1, 46.18935,-123.83325 +/-250m); p51__2 (tier 3, 46.18966,-123.83030 +/-525m); p51__3 (tier 1, 46.19007,-123.83043 +/-100m); p52__1 (tier 4, 46.18771,-123.82388 +/-3903m); p52__2 (tier 4, 46.18771,-123.82388 +/-3903m); p52__3 (tier 4, 46.18771,-123.82388 +/-3903m); p52__4 (tier 4, 46.18771,-123.82388 +/-3903m); p52__5 (tier 4, 46.18771,-123.82388 +/-3903m); p53 (tier 1, 46.18540,-123.85820 +/-267m); p54__1 (tier 2, 46.18753,-123.85591 +/-100m); p54__2 (tier 1, 46.19213,-123.84993 +/-100m); p54__3 (tier 2, 46.18753,-123.85591 +/-100m); p54__4 (tier 1, 46.19059,-123.84993 +/-147m); p59__1 (tier 1, 46.18801,-123.85578 +/-271m); p59__2 (tier 1, 46.18875,-123.85738 +/-192m); p5__1 (tier 1, 46.19020,-123.80957 +/-114m); p5__2 (tier 1, 46.18906,-123.83576 +/-266m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p10","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"23"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0010","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1021.2,292.9 1020.5,780.9 1021.0,1024.0 1023.0,1262.1 52.4,1251.2 50.6,1022.5 52.4,778.8 54.4,52.8 292.9,53.2 538.9,56.4 775.7,57.8 775.7,42.5 1017.4,59.7 1021.2,292.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[296.0,780.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8386657,46.189151]}},{"type":"Feature","properties":{"resourceCoords":[1021.0,1024.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8397284,46.1871168]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0011__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p11 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.17"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4352.0"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0011__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0011","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"69.7,99.4 78.6,450.5 487.0,454.4 543.8,481.0 545.2,481.0 545.2,481.6 554.2,485.9 547.6,1160.2 590.9,1182.8 592.6,1249.3 539.4,1252.9 539.3,1261.2 539.3,1265.2 1027.4,1181.8 1064.7,1174.5 1067.2,66.2 844.1,68.7 840.2,61.6 1.0,92.6 1.0,100.2 69.7,99.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0011__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1081.0,319.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8397547,46.1863979]}},{"type":"Feature","properties":{"resourceCoords":[1081.0,66.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8397284,46.1871168]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p12","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0012","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"43.1,67.2 57.0,67.0 301.0,64.9 790.8,62.3 1038.8,56.6 1038.4,313.4 1035.0,571.0 1044.5,571.0 1038.9,819.6 1036.2,819.6 1036.0,1078.1 1029.0,1078.1 908.9,1078.6 304.7,1294.3 304.5,1257.3 44.6,1186.2 43.1,67.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[544.0,1080.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8378666,46.1842237]}},{"type":"Feature","properties":{"resourceCoords":[57.0,67.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8397284,46.1871168]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p13","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0013","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"961.5,720.5 966.6,775.2 965.9,870.3 953.4,925.7 952.0,1144.0 703.5,1137.8 703.6,1133.2 278.8,1121.0 278.5,1024.9 209.5,887.9 233.2,662.4 188.8,549.9 120.1,530.5 65.3,246.4 339.8,274.9 388.7,220.9 511.2,220.5 564.8,137.0 570.6,76.4 728.6,110.5 722.7,149.7 748.9,149.8 913.5,150.4 949.2,150.5 975.0,151.3 974.7,163.6 974.3,178.9 961.5,720.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[893.0,894.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8346792,46.1899482]}},{"type":"Feature","properties":{"resourceCoords":[952.0,1144.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.835674,46.189788]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0013A/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p13A","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0013A/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0013A","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"167.0,1177.0 167.1,679.4 167.2,186.0 956.2,191.6 949.9,1180.1 167.0,1177.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0013A/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[953.0,686.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8301796,46.1890047]}},{"type":"Feature","properties":{"resourceCoords":[167.0,1177.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.831766,46.188348]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0013B/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p13B","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0013B/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0013B","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"782.3,214.4 945.1,238.2 983.0,705.0 1020.9,1067.0 796.9,1086.1 735.6,1100.2 559.9,1188.2 527.6,1195.8 215.8,1197.1 218.3,212.6 782.3,214.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0013B/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[217.0,705.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8301796,46.1890047]}},{"type":"Feature","properties":{"resourceCoords":[983.0,705.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.828646,46.18898]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0014__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p14 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.98"},{"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":"2152.0"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0014__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0014","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"404.0,159.0 158.9,159.8 158.8,187.2 156.8,723.8 162.9,777.8 164.1,872.0 152.8,927.0 155.7,1143.2 398.3,1143.5 404.0,876.8 399.9,676.8 398.5,431.4 404.1,276.8 404.0,159.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0014__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[404.0,896.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8347046,46.1890822]}},{"type":"Feature","properties":{"resourceCoords":[404.0,159.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8317464,46.189035]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0014__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p14 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.98"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2066.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2293.6"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0014__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0014","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"648.5,171.0 649.3,287.6 644.6,440.8 647.3,683.8 652.5,881.9 648.5,1146.0 896.1,1147.7 894.5,882.0 894.0,413.6 893.0,168.8 648.5,171.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0014__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[648.5,1146.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8356974,46.1891139]}},{"type":"Feature","properties":{"resourceCoords":[648.5,171.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8317464,46.189035]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p15","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0015","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"741.7,1160.7 742.0,1175.2 492.5,1157.0 492.4,1172.8 247.9,1170.9 248.4,898.7 251.8,418.6 252.9,167.6 1014.8,175.1 1012.0,424.7 1005.1,690.6 1007.0,892.4 1006.1,1163.3 741.7,1160.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[495.0,671.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8337763,46.1877137]}},{"type":"Feature","properties":{"resourceCoords":[745.0,671.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8337967,46.1870293]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p16","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0016","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"932.4,688.7 931.2,327.4 870.7,177.8 870.5,1.0 799.2,1.0 801.4,6.4 751.2,1.0 416.6,1.0 416.7,173.7 413.8,173.7 371.6,9.1 316.1,9.4 332.4,173.2 186.4,172.7 160.0,172.5 158.6,418.7 153.1,681.0 155.9,880.0 156.4,1147.2 417.8,1151.5 417.8,1142.0 670.1,1148.5 670.1,1151.2 932.5,1152.2 932.4,945.4 932.3,884.5 932.4,688.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[670.0,908.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8348585,46.1849]}},{"type":"Feature","properties":{"resourceCoords":[417.0,420.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8328764,46.1855673]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0017","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"95.1,1057.7 94.2,805.9 91.5,546.2 102.7,546.1 101.2,290.2 110.7,290.1 39.5,179.2 457.9,29.4 580.2,28.8 794.8,27.8 855.9,27.4 1032.5,26.8 1058.0,286.1 1047.8,286.2 1054.0,797.7 1052.2,797.7 1058.1,1087.5 863.6,1084.8 587.4,1089.8 94.9,1092.8 95.1,1057.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[837.0,549.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8349290473128,46.18272912623561]}},{"type":"Feature","properties":{"resourceCoords":[837.0,1079.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.83499233409214,46.181262948296634]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p18","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.84"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0018","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"357.8,1345.1 358.0,1342.0 369.9,1342.4 371.5,1266.7 391.5,1304.4 666.2,1211.6 973.1,1163.9 972.2,1098.8 980.4,1098.3 976.1,508.4 993.1,505.8 977.1,312.9 969.8,313.0 970.2,230.6 955.9,58.5 971.1,55.1 896.8,1.0 577.7,1.0 433.1,59.3 78.2,60.1 58.8,60.1 82.5,314.3 72.6,314.3 76.0,815.3 74.3,815.3 78.5,1099.2 100.2,1099.6 345.3,1099.5 344.8,1348.0 357.8,1345.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0018/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[586.0,561.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8319853,46.1827059]}},{"type":"Feature","properties":{"resourceCoords":[344.0,60.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8329221,46.184138]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0019__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p19 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.84"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2185.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2166.8"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0019__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0019","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"967.0,826.5 959.7,547.8 969.1,467.0 1043.9,125.3 1044.8,121.6 607.4,219.4 610.4,327.8 663.3,329.8 670.6,469.1 639.9,615.2 602.4,631.6 578.5,1160.9 734.5,1186.7 730.6,1225.4 756.2,1224.2 951.9,1215.3 977.1,1214.8 967.0,826.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0019__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[546.3,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-123.82672052839456,46.190747125909645]}},{"type":"Feature","properties":{"resourceCoords":[1088.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-123.82683597689794,46.18922494202121]}},{"type":"Feature","properties":{"resourceCoords":[1088.0,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-123.83233416686721,46.18942588647662]}},{"type":"Feature","properties":{"resourceCoords":[546.3,1359.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-123.83221871836383,46.19094807036505]}},{"type":"Feature","properties":{"resourceCoords":[969.1,467.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8287,46.1896282]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p1 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.41"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2246.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2106.0"},{"label":"split_canvas_h","value":"1115.6"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0001","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1088.0,0.0 564.7,0.0 561.5,270.8 1088.0,278.9 1088.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[561.5,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-123.83958003359108,46.17317787997034]}},{"type":"Feature","properties":{"resourceCoords":[1088.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-123.83867582083333,46.172794735791484]}},{"type":"Feature","properties":{"resourceCoords":[1088.0,278.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-123.83896669486309,46.172460913687196]}},{"type":"Feature","properties":{"resourceCoords":[561.5,278.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-123.83987090762083,46.17284405786605]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p20","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0020","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"862.3,533.7 897.1,547.6 898.2,760.9 897.1,1129.2 181.0,1128.0 181.0,761.0 192.0,289.0 862.3,533.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[181.0,761.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.828646,46.18898]}},{"type":"Feature","properties":{"resourceCoords":[181.0,1128.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.828587,46.188477]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p21","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0021/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0021","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1087.0,906.7 1087.0,1301.4 1022.7,1294.8 942.0,1286.5 915.6,1283.7 164.4,1205.4 202.3,815.8 216.8,660.0 214.5,643.5 179.1,551.4 175.0,520.1 176.3,407.3 174.2,50.8 542.4,50.5 735.4,53.8 1072.5,48.6 1071.0,406.4 1031.0,406.5 1087.0,772.2 1084.9,906.5 1087.0,906.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0021/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[361.0,412.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.82855167370323,46.187967317856724]}},{"type":"Feature","properties":{"resourceCoords":[181.0,412.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.82860436570228,46.18846314487341]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p22","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0022/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0022","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"673.9,1281.4 674.3,1273.1 75.7,1214.2 40.0,400.8 40.3,257.9 39.7,231.0 39.7,221.9 84.3,59.3 84.3,59.9 741.1,29.9 943.7,61.0 1036.8,117.3 1072.4,281.4 1067.0,1013.5 1033.4,1186.7 897.6,1175.7 869.4,1222.2 738.9,1265.4 740.0,1287.5 673.9,1281.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0022/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[401.0,614.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8278890768764,46.18206274416561]}},{"type":"Feature","properties":{"resourceCoords":[404.0,257.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.82646378684747,46.182134175310566]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p23","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0023","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"113.3,782.7 97.5,784.2 91.1,961.1 80.7,1044.9 88.2,1045.7 81.1,1244.0 881.4,1219.5 1025.0,1221.7 1027.2,1221.7 1032.5,865.4 1065.6,866.0 1058.4,510.2 1039.3,509.9 1046.9,151.8 688.5,142.8 689.2,102.8 321.8,151.4 187.3,146.5 184.5,169.6 1.0,193.8 1.0,678.5 113.3,782.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0023/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[130.0,788.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.83029491627784,46.184097575114635]}},{"type":"Feature","properties":{"resourceCoords":[1033.0,500.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.82682247122591,46.18512153912666]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p24","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0024","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6.3,150.0 3.2,504.3 22.1,504.4 33.5,856.4 1.0,856.1 1.0,1208.6 24.5,1208.1 33.5,1208.1 195.2,1252.6 1034.1,1262.8 1058.7,684.5 1071.5,656.4 1042.5,506.4 1057.8,135.1 710.4,152.2 710.4,146.8 382.5,151.1 6.3,150.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0024/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[358.0,858.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8252545,46.1841943]}},{"type":"Feature","properties":{"resourceCoords":[358.0,151.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8254861,46.186158]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0025__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p25 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.71"},{"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":"2774.0"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0025__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0025","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"585.0,840.5 575.5,797.0 582.5,418.1 587.1,262.1 592.7,105.6 101.2,201.3 128.0,365.9 68.7,596.3 105.8,846.9 82.4,1110.7 8.8,1107.7 1.0,1182.8 1.0,1192.5 454.9,1165.4 460.7,1151.8 567.2,1154.0 585.0,840.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0025__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[585.6,1166.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8272656883885,46.18900630941478]}},{"type":"Feature","properties":{"resourceCoords":[581.6,811.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.82586497342254,46.18912171108934]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0025__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p25 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.94"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2774.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1578.0"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0025__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0025","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"811.9,853.3 801.4,1167.1 985.3,1168.2 987.8,814.0 989.2,455.2 1007.5,455.2 1014.3,98.0 1006.6,98.2 802.4,98.0 802.6,118.4 800.7,275.0 799.7,431.1 801.4,810.0 811.9,853.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0025__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[801.4,810.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8258121,46.1891426]}},{"type":"Feature","properties":{"resourceCoords":[802.4,98.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8229927,46.1893042]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p26","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0026/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0026","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"984.6,125.0 1002.5,472.1 997.0,472.1 1002.0,799.8 1001.7,1175.7 667.7,1178.8 476.6,1174.4 112.0,1172.5 112.8,823.0 112.5,469.2 130.6,469.1 135.7,116.8 268.8,114.0 293.2,113.7 293.2,98.2 984.6,125.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0026/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[293.0,469.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8242863,46.1882074]}},{"type":"Feature","properties":{"resourceCoords":[293.0,1174.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8271171,46.1880514]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p27","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.56"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0027/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0027","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"918.9,1275.4 923.4,1244.5 195.2,1275.0 186.6,1132.8 177.4,924.0 156.6,925.2 24.9,430.3 61.4,421.8 53.3,245.9 103.1,127.4 604.8,127.1 688.5,165.5 1025.1,177.8 1044.8,896.2 1053.2,896.0 1043.6,1270.3 918.9,1275.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0027/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[186.0,1093.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8229336437118,46.18885077559185]}},{"type":"Feature","properties":{"resourceCoords":[900.0,1085.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.82016153296479,46.18894781622006]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0028/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p28","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.82"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0028/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0028","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"80.5,893.1 72.5,893.0 86.8,204.5 163.8,139.8 644.2,104.8 920.1,37.3 1036.4,86.1 1072.1,229.0 1072.2,393.0 1033.2,452.2 1033.2,1223.7 1080.8,1261.9 992.9,1255.6 927.2,1242.3 823.3,1207.5 809.1,1230.4 768.1,1257.1 289.0,1252.9 251.9,1252.6 79.0,1251.1 54.2,1250.9 80.5,893.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0028/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[644.0,1256.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8171898,46.1885951]}},{"type":"Feature","properties":{"resourceCoords":[996.0,895.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.815895,46.1896914]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0029/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p29","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.82"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0029/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0029","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1048.5,1224.5 994.9,1293.4 416.2,1246.0 54.1,1287.4 38.5,1269.3 8.3,1119.5 43.0,56.6 27.5,56.7 26.9,32.3 26.9,29.0 730.4,23.3 725.0,53.0 870.6,52.0 1044.8,51.1 1079.5,50.9 1078.7,401.1 1085.4,401.1 1077.0,1114.1 1081.0,1114.1 1084.8,1222.7 1048.5,1224.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0029/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[382.0,1117.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8211233,46.1854096]}},{"type":"Feature","properties":{"resourceCoords":[725.0,53.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8200593,46.1884379]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0030/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p30","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.24"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0030/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0030","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"33.6,99.8 509.1,97.9 549.5,70.9 563.3,47.9 666.9,81.2 732.2,93.6 819.6,98.7 839.5,114.2 942.1,121.8 881.1,156.3 1089.0,974.9 1089.0,1131.8 1064.8,1130.0 1020.1,1279.7 75.8,1252.2 34.8,1254.2 31.2,1147.2 27.2,1147.2 36.4,444.8 29.8,444.9 31.0,99.8 33.6,99.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0030/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[376.0,435.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.817128,46.187643]}},{"type":"Feature","properties":{"resourceCoords":[1320.0,1139.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8130656,46.1858552]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0032/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p32","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.67"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0032/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0032","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"815.9,1318.1 888.6,1358.0 977.7,1358.0 1000.2,1324.2 1053.2,1313.7 1089.0,1113.8 1067.6,141.0 33.8,160.9 33.5,211.5 42.3,215.0 38.2,969.4 1.0,1025.1 1.0,1097.0 815.9,1318.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0032/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[376.0,871.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.81353508686804,46.188005844146595]}},{"type":"Feature","properties":{"resourceCoords":[1058.0,1225.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.81319235335124,46.185846513043685]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0033/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p33","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.67"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0033/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0033","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1038.8,1246.5 1038.9,1297.2 961.2,1266.8 444.8,1225.8 278.1,1288.2 20.0,1193.4 33.4,378.7 54.8,232.6 124.2,118.0 115.6,76.7 194.1,128.1 1029.6,228.3 1029.4,276.9 1030.9,548.0 1069.0,547.8 1086.1,1245.2 1038.8,1246.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0033/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1018.0,1250.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.81195645817444,46.18996813589852]}},{"type":"Feature","properties":{"resourceCoords":[1018.0,195.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.80836158104785,46.191598645666886]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0034/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p34","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0034/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0034","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1081.7,709.3 1079.3,788.4 1056.3,817.3 1065.2,1223.1 66.5,1242.2 55.1,537.9 16.7,537.8 17.4,264.1 172.4,43.7 187.4,16.3 487.8,220.3 616.1,306.1 803.7,427.4 829.1,390.4 1081.7,709.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0034/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[477.0,232.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.80747864956741,46.19042707924106]}},{"type":"Feature","properties":{"resourceCoords":[371.0,1234.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.81107886129385,46.189120189533234]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0035/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p35","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.56"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0035/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0035","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"340.1,1260.1 612.8,1266.9 644.4,1264.3 674.5,1260.2 1006.0,1264.7 1020.9,811.1 1035.0,802.1 970.4,248.1 864.5,245.7 864.6,89.2 810.8,59.8 473.4,54.6 92.0,118.0 47.8,318.4 1.0,365.2 1.0,464.1 381.9,1233.0 340.1,1260.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0035/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[656.0,1251.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.80735677784315,46.19147075700472]}},{"type":"Feature","properties":{"resourceCoords":[1011.0,1251.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.80594220937219,46.19147143527127]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0036/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p36","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.66"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0036/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0036","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"830.6,1259.2 802.7,1259.2 530.1,1258.7 128.9,1257.7 118.2,1257.6 128.8,809.1 142.7,800.1 73.7,253.1 191.4,254.6 224.9,210.8 242.9,51.1 924.6,74.3 1012.2,141.2 1049.0,484.2 1089.0,482.1 1089.0,497.9 955.3,497.6 877.5,886.0 860.2,886.0 860.4,909.4 860.9,969.0 861.6,1072.2 863.0,1259.0 830.6,1259.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0036/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[494.0,1259.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8044474,46.1914208]}},{"type":"Feature","properties":{"resourceCoords":[863.0,1259.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8029599,46.191412]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0037/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p37","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0037/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0037","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"937.8,184.7 897.2,457.9 911.4,461.9 907.0,818.0 900.0,1183.9 676.4,1185.6 521.9,1184.5 158.6,1179.2 154.7,1149.4 161.2,811.0 168.3,409.9 173.3,109.4 173.5,80.2 539.6,78.1 539.2,120.5 718.5,119.8 723.5,150.9 737.4,170.0 948.3,174.3 937.8,184.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0037/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[168.0,446.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8044474,46.1914208]}},{"type":"Feature","properties":{"resourceCoords":[907.0,818.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.805928,46.189352]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0038/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p38","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.67"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0038/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0038","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"495.4,1264.8 101.2,1142.0 101.8,816.5 100.0,455.3 85.5,451.5 121.9,173.7 188.8,105.3 929.8,89.2 988.1,104.8 1038.5,236.7 1039.7,1241.8 544.5,1252.2 538.8,1332.5 495.4,1264.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0038/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[480.0,454.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8045038,46.1883006]}},{"type":"Feature","properties":{"resourceCoords":[480.0,93.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8030692,46.1882898]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0003__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p3 [2]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.10"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4352.0"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0003__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0003","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"145.4,640.5 434.1,883.5 436.4,883.5 673.6,888.9 673.6,889.2 674.5,889.2 674.3,894.0 719.5,1199.1 925.0,1274.0 1026.2,1235.2 1087.0,769.2 1087.0,742.2 1039.6,579.4 1062.2,584.2 1067.2,472.5 1058.1,471.8 1060.2,187.1 1087.0,189.0 1087.0,137.2 1022.3,54.1 1003.3,78.7 657.0,40.6 422.6,61.0 406.1,31.5 133.2,72.7 42.8,131.6 45.3,374.7 30.2,394.2 196.6,623.6 145.4,640.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0003__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[329.0,419.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8555795,46.1863561]}},{"type":"Feature","properties":{"resourceCoords":[853.0,971.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8522742,46.1860035]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p4","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.70"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0004","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"79.6,520.7 75.6,399.2 65.7,399.2 43.9,90.4 73.2,90.2 68.8,34.0 135.8,107.5 554.1,59.1 974.4,104.3 998.7,137.6 1034.9,127.3 933.0,412.6 918.1,412.5 829.5,616.4 834.6,616.9 815.2,746.4 812.1,908.8 811.0,968.3 834.1,1007.5 872.9,1013.4 924.8,1102.7 887.8,1097.3 780.4,1234.5 275.2,1283.5 131.6,1212.3 95.4,1229.5 122.8,706.0 125.9,706.0 54.6,517.5 79.6,520.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[816.0,706.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8496888,46.1880209]}},{"type":"Feature","properties":{"resourceCoords":[159.0,706.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8519081,46.1870122]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0041/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p41","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0041/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0041","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"81.4,527.8 81.8,504.4 99.0,504.8 185.3,120.0 318.4,123.3 319.8,107.5 852.1,92.9 899.8,122.5 1017.6,125.1 988.0,1256.9 72.0,1240.4 72.9,875.8 76.0,875.9 78.9,689.9 81.4,527.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0041/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[77.0,883.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.80295547114912,46.1913920605636]}},{"type":"Feature","properties":{"resourceCoords":[811.0,1255.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.79996295687347,46.19037951240822]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0042/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p42","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.12"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0042/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0042","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"99.1,140.1 1089.0,139.7 1089.0,362.7 1072.8,362.9 1037.5,670.5 1057.0,1313.5 617.1,1302.9 375.6,1248.2 130.8,1316.2 110.8,1301.1 95.1,1316.8 95.3,1252.2 99.1,140.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0042/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[633.0,897.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.7970186,46.1913819]}},{"type":"Feature","properties":{"resourceCoords":[265.0,897.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.7985351,46.1913906]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0043/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p43","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.57"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0043/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0043","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"75.2,1301.7 92.0,1238.1 424.9,1228.5 807.6,1319.7 1000.5,1312.2 1009.1,1298.9 1006.2,97.3 45.4,107.5 49.8,286.6 18.8,292.1 1.0,305.7 1.0,518.0 57.0,572.4 75.2,1301.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0043/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[70.0,859.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8030692,46.1882898]}},{"type":"Feature","properties":{"resourceCoords":[815.0,110.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8000192,46.1903536]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0045/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p45","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.54"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0045/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0045","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"232.6,84.2 1.0,123.5 1.0,123.8 28.7,126.7 17.0,746.9 35.0,1052.0 79.0,1142.1 132.0,1189.2 351.4,1191.3 562.9,1317.6 748.9,1320.2 749.1,1358.0 973.5,1358.0 973.1,1317.5 1025.4,1302.5 1052.6,1187.8 1049.6,529.6 1086.1,390.8 1052.7,391.2 1020.5,86.3 903.0,58.5 775.0,101.8 775.0,84.0 592.0,85.2 375.4,82.8 232.6,84.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0045/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[775.0,444.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.7911425,46.1934261]}},{"type":"Feature","properties":{"resourceCoords":[775.0,84.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.7896718,46.193414]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0046__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p46 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.67"},{"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":"4360.0"},{"label":"split_canvas_h","value":"5436.0"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0046__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0046","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"112.3,1326.2 116.1,1310.0 783.3,1275.5 833.6,1190.0 858.2,968.6 985.2,971.2 987.1,976.2 987.1,976.2 1027.5,900.3 1030.8,900.2 1028.7,647.1 1033.0,647.0 1027.8,538.0 1020.9,392.6 1029.7,392.2 1032.7,154.3 1003.6,86.7 537.5,47.3 91.7,106.4 42.4,253.0 41.4,421.4 84.0,665.4 86.0,806.1 84.5,1019.7 86.6,1200.2 69.0,1200.2 112.3,1326.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0046__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1033.0,647.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.7857125,46.1949561]}},{"type":"Feature","properties":{"resourceCoords":[84.0,665.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.7896461,46.1949491]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0047/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p47","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.27"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0047/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0047","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1024.9,1251.0 1053.2,989.3 1087.0,976.9 1087.0,892.1 1084.7,226.1 1046.0,233.6 1033.6,108.6 968.4,76.4 702.7,38.2 619.9,67.2 342.6,52.2 294.9,98.3 234.1,94.9 1.0,180.0 1.0,214.7 28.2,221.8 14.3,570.0 53.1,825.5 24.4,1091.7 55.0,1214.1 285.5,1233.3 285.7,1228.9 547.5,1232.7 547.0,1243.0 809.8,1255.2 810.4,1244.9 1024.9,1251.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0047/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[547.0,1243.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.781349,46.1949728]}},{"type":"Feature","properties":{"resourceCoords":[285.0,1243.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.7814065,46.195712]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0048/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p48","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.84"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0048/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0048","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"814.9,1234.8 550.2,1229.8 550.2,1225.2 283.8,1230.7 283.7,1221.4 35.0,1211.4 47.5,1206.4 53.0,1162.2 13.4,729.0 49.5,119.5 48.5,116.0 286.6,125.6 286.6,121.0 556.2,113.3 556.1,124.0 827.1,124.9 827.3,114.2 1048.3,111.1 1065.5,1222.5 1035.6,1261.5 894.5,1283.4 814.9,1238.2 814.9,1234.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0048/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[542.0,495.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.78281969053121,46.19500043668985]}},{"type":"Feature","properties":{"resourceCoords":[542.0,127.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.78136167416116,46.19501144849586]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0050/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p50","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.49"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0050/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0050","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"62.8,771.0 101.0,749.6 98.0,475.4 156.3,360.0 150.3,232.9 336.5,234.0 407.8,186.6 428.6,107.2 559.0,66.8 1001.8,109.9 1037.3,1186.0 658.8,1262.5 233.3,1277.4 234.0,1291.2 182.2,1247.4 179.3,1185.0 68.1,955.0 33.5,958.5 62.8,771.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0050/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[178.0,756.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.77666390440696,46.1972114749408]}},{"type":"Feature","properties":{"resourceCoords":[178.0,1267.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.77675872850514,46.195804426526735]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0055/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p55","metadata":[{"label":"streets","value":"17"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.51"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0055/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0055","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1063.3,1029.2 1086.5,1063.4 1054.0,1100.7 1053.6,1235.7 1003.4,1262.0 789.4,1230.5 613.1,1268.0 540.1,1256.7 307.3,1276.4 92.7,1276.0 23.9,1246.2 42.3,1158.5 12.9,933.1 12.4,394.6 33.6,87.5 75.4,46.2 109.0,54.0 143.3,30.9 771.4,19.7 923.5,34.4 935.9,24.9 992.0,169.5 962.6,171.3 1087.0,347.8 1087.0,1005.0 1063.3,1029.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0055/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[336.0,788.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8547615,46.1806324]}},{"type":"Feature","properties":{"resourceCoords":[336.0,1020.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.853285,46.1798469]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0056__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p56 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.81"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"1985.6"},{"label":"split_canvas_w","value":"4360.0"},{"label":"split_canvas_h","value":"3450.4"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0056__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0056","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"58.0,1209.4 86.8,1240.8 165.2,1250.4 197.8,1276.2 202.0,1329.7 267.9,1330.0 269.2,1293.3 357.0,1290.4 429.1,1329.5 590.9,1348.6 989.1,1357.5 982.3,1351.7 986.9,1341.3 1048.8,1316.4 1062.3,1206.2 1054.3,816.1 1069.3,752.1 1044.3,528.5 802.0,514.1 801.9,510.0 734.4,510.1 679.0,506.8 679.1,510.2 559.2,510.6 430.9,513.0 309.0,514.4 190.2,513.5 144.9,514.1 44.9,515.1 45.7,813.8 53.5,813.7 58.0,1209.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0056__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[437.0,799.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8382239,46.1732843]}},{"type":"Feature","properties":{"resourceCoords":[808.0,799.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8352631,46.1732167]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0056__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p56 [2]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.62"},{"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":"4360.0"},{"label":"split_canvas_h","value":"1985.6"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0056__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0056","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"512.2,79.4 425.6,86.9 380.7,62.1 209.5,40.5 52.8,71.8 36.0,242.9 45.8,463.9 532.3,466.8 627.4,495.4 1044.8,495.4 1044.7,488.9 1042.5,363.2 1039.2,233.8 1044.8,233.7 1042.3,106.0 1047.0,105.9 1010.7,51.0 913.2,87.6 912.8,68.8 780.4,34.7 780.4,34.2 761.4,38.2 512.3,85.7 512.2,79.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0056__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[674.0,241.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8408361,46.1828468]}},{"type":"Feature","properties":{"resourceCoords":[674.0,369.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8408814,46.1821368]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0057/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p57","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.19"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0057/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0057","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1051.2,1289.8 555.2,1280.8 504.8,1246.0 494.3,1179.8 438.6,1107.1 437.9,1064.4 346.5,978.0 249.3,984.3 184.8,959.2 64.1,975.2 59.0,643.2 22.6,435.1 34.0,93.3 56.8,38.4 220.3,24.0 289.5,46.6 405.4,25.9 1027.2,37.7 1024.9,18.6 1032.4,18.7 1035.2,18.8 1054.8,616.2 1051.9,616.2 1047.5,906.6 1055.1,906.7 1052.7,1291.5 1051.2,1289.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0057/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[843.0,480.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8429767,46.1757193]}},{"type":"Feature","properties":{"resourceCoords":[1031.0,616.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8414499,46.1749295]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0058/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p58","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.78"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0058/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0058","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"66.9,1272.0 34.9,655.4 24.2,655.4 14.1,584.9 37.5,481.1 14.8,320.1 41.1,302.1 42.1,260.4 24.1,90.0 20.4,88.2 441.3,92.3 441.3,93.8 441.2,103.5 688.8,100.8 827.6,97.6 936.5,98.7 1062.3,97.4 1063.2,224.9 1076.1,221.9 1064.5,1259.6 1067.3,1284.0 824.0,1269.9 823.9,1265.7 756.1,1266.0 700.5,1262.8 700.6,1266.2 580.2,1266.7 451.4,1269.2 329.0,1270.8 209.8,1270.2 164.2,1270.8 66.9,1272.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0058/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[203.0,103.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.83985242950479,46.18133358884093]}},{"type":"Feature","properties":{"resourceCoords":[203.0,1260.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.84016892131505,46.17496632848509]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p6","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0006","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1028.1,838.9 1010.1,800.4 1024.5,110.0 1034.8,98.8 507.4,69.7 481.4,61.9 309.3,49.3 62.3,36.5 1.0,29.1 1.0,70.2 34.7,76.5 20.4,626.9 78.4,969.6 35.0,1182.1 151.4,1282.9 446.1,1211.4 454.3,1223.9 673.6,1185.9 671.2,1181.5 790.2,1126.4 978.2,1008.0 998.3,967.1 981.9,931.4 1028.1,838.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[360.0,533.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8472063,46.1891269]}},{"type":"Feature","properties":{"resourceCoords":[756.0,1148.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8496888,46.1880209]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.50"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0007","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"933.8,1243.8 933.9,1201.6 997.8,1209.6 1015.4,705.2 1033.9,41.9 776.9,34.2 777.0,30.9 440.9,1.0 155.4,1.0 155.2,53.5 90.7,93.0 50.7,196.9 83.4,851.3 52.6,1168.4 96.9,1282.5 334.8,1283.2 701.9,1200.1 933.8,1243.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[771.0,58.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.84067754912196,46.19058542906001]}},{"type":"Feature","properties":{"resourceCoords":[1007.0,1194.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.84514074090141,46.18993353402054]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p8","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.74"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0008","type":"ImageService3","width":1090,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1064.8,1214.6 1018.9,1267.2 492.8,1252.1 466.7,1245.0 295.0,1237.0 48.6,1230.7 51.1,741.0 50.0,97.0 49.9,86.3 1021.4,97.2 1054.0,948.6 1061.6,948.6 1064.8,1214.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[295.0,1237.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8452542,46.1892682]}},{"type":"Feature","properties":{"resourceCoords":[50.0,97.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.840611,46.18987]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Astoria, Oregon | 1956 | sanborn07319_007 p9","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:03:14Z","modified":"2026-10-24T15:03:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0009","type":"ImageService3","width":1088,"height":1359},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1016.8,776.4 1017.1,1018.8 1021.2,1256.8 775.0,1258.0 775.0,1254.8 441.7,1236.7 179.3,1245.8 176.1,1145.2 90.2,1128.9 107.8,482.8 127.0,339.8 324.3,271.8 360.8,71.3 360.1,50.4 771.5,50.6 771.6,55.1 1012.2,54.4 1016.8,776.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294am:g4294am_g073191956:07319_1956-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[775.0,538.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8376287,46.1905053]}},{"type":"Feature","properties":{"resourceCoords":[775.0,1258.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-123.8405841,46.1905696]}}]}}]}