{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn07439_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Portland, Oregon | 1908 | mapsnap generated fit (2026-10-18)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-18"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"98"},{"label":"placed","value":"79"},{"label":"unplaced","value":"19"},{"label":"fit sources","value":"georef 59, georef-snap 15, snap:0 2, georef-street 2, snap:1 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"8 sheet(s) cut into 15 panels"},{"label":"unplaced pages","value":"p0__2 (tier 1, 45.53869,-122.71928 +/-100m); p1 (tier 1, 45.54368,-122.70084 +/-265m); p10 (tier 2, 45.53924,-122.69091 +/-236m); p2 (tier 3, 45.54582,-122.70024 +/-472m); p20__1 (tier 1, 45.53570,-122.68535 +/-251m); p20__2 (tier 1, 45.53534,-122.68609 +/-141m); p30__1 (tier 1, 45.53289,-122.67995 +/-244m); p30__2 (tier 2, 45.53375,-122.68061 +/-100m); p38 (tier 2, 45.53106,-122.67688 +/-100m); p4 (tier 1, 45.54350,-122.69682 +/-249m); p40 (tier 1, 45.52653,-122.70278 +/-254m); p48 (tier 1, 45.52760,-122.67200 +/-126m); p77 (tier 1, 45.52297,-122.68234 +/-262m); p87__1 (tier 1, 45.52544,-122.67349 +/-254m); p87__2 (tier 1, 45.52339,-122.67417 +/-100m); p88__1 (tier 1, 45.52377,-122.67472 +/-258m); p88__2 (tier 1, 45.51744,-122.66451 +/-100m); p89 (tier 1, 45.52370,-122.67330 +/-260m); p90 (tier 1, 45.51683,-122.66215 +/-294m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"41.3,1764.2 95.2,1692.0 43.8,1683.0 26.2,1534.8 45.1,212.9 111.0,229.8 137.3,97.6 608.9,134.4 1299.6,15.4 1503.0,45.2 1533.0,698.8 1520.0,698.6 1565.0,1089.8 1551.0,1089.8 1569.2,1485.7 1587.0,1486.3 1587.3,1876.3 1365.7,1874.6 827.2,1871.6 827.2,1863.4 42.0,1840.3 41.3,1764.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1565.0,1096.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.71477834936293,45.53662704773767]}},{"type":"Feature","properties":{"resourceCoords":[214.0,1854.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.71823892119036,45.535166430449664]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"483.3,87.5 1222.0,14.9 1443.5,66.8 1612.0,59.1 1612.0,60.1 1612.0,76.3 1521.2,94.6 1508.5,692.5 1548.0,692.9 1545.2,1091.4 1485.0,1090.6 1489.0,1873.2 1215.5,1788.3 984.4,1719.7 946.6,1708.7 126.2,1602.1 126.3,1473.6 108.4,1473.0 90.7,1074.3 104.8,1074.3 60.1,680.4 73.2,680.6 44.0,22.4 483.3,87.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[516.0,1576.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.71367207874638,45.53575293817528]}},{"type":"Feature","properties":{"resourceCoords":[126.0,1459.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.71469159188231,45.53594204843723]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p13","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.65"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"286.6,1824.0 191.3,1821.0 190.1,1820.6 178.9,1054.2 237.9,1054.4 236.8,664.0 198.2,664.0 205.1,78.3 293.8,59.5 293.6,42.7 595.4,26.1 906.8,106.1 1439.5,60.1 1368.5,1022.5 1382.8,1028.0 1380.5,1432.5 1327.9,1433.2 1468.8,1818.2 1098.3,1818.7 1066.9,1818.7 286.6,1824.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[235.0,1824.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.7110092,45.5352672]}},{"type":"Feature","properties":{"resourceCoords":[235.0,72.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.711116,45.5385117]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p14","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.82"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"185.7,1425.4 238.8,1424.9 242.2,1016.5 227.8,1010.9 291.7,266.2 678.1,120.5 678.2,150.4 1437.8,265.0 1437.8,294.5 1437.8,375.4 1612.0,270.3 1612.0,647.4 1438.0,647.0 1439.4,1813.0 476.1,1814.9 327.0,1814.6 185.7,1425.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[678.0,1815.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.7068285,45.5353464]}},{"type":"Feature","properties":{"resourceCoords":[1438.0,647.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.7049173,45.5375242]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"793.7,1764.9 34.8,1762.6 35.4,595.5 209.6,596.1 211.2,218.0 293.5,168.6 294.1,156.3 782.2,271.0 782.3,277.9 1556.8,218.5 1558.6,592.7 1557.8,911.7 1561.1,969.8 1612.0,970.0 1612.0,1001.9 1580.0,1002.1 1583.3,1039.4 1553.2,1765.1 793.7,1764.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[794.0,984.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.70290540800148,45.53685043701157]}},{"type":"Feature","properties":{"resourceCoords":[50.0,1373.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.70482339012874,45.536100488336864]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p16","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"39.0,168.0 806.7,171.1 806.7,163.3 1189.8,148.8 1217.8,165.8 1580.0,165.6 1580.5,551.8 1567.1,551.7 1579.2,1710.7 1276.1,1711.5 425.2,1712.0 42.0,1715.6 68.8,995.3 65.5,958.3 97.2,958.0 97.0,926.3 46.5,926.3 43.0,868.6 42.5,552.1 39.0,168.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[807.0,942.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6988949,45.5369185]}},{"type":"Feature","properties":{"resourceCoords":[807.0,552.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6989187,45.5376385]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p17","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1575.2,1766.7 1415.1,1726.5 1235.7,1717.7 431.2,1715.0 42.8,1710.0 37.1,1710.0 40.2,554.0 53.5,554.2 58.0,169.0 450.3,168.2 825.8,175.6 825.9,169.0 1592.5,200.7 1590.5,465.9 1585.0,954.4 1580.2,1243.2 1586.1,1317.8 1610.2,1461.6 1603.4,1563.7 1576.8,1715.3 1575.2,1766.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[816.0,946.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6948284,45.5369982]}},{"type":"Feature","properties":{"resourceCoords":[58.0,169.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6969051,45.538385]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p18","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.82"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"47.5,174.4 84.7,98.6 543.3,53.3 885.3,155.9 1153.7,78.6 1492.5,77.8 1577.2,346.6 1612.0,351.2 1612.0,546.1 1601.5,561.5 1592.5,604.5 1589.2,841.7 1588.1,877.0 1584.5,986.6 1575.3,1725.8 1025.2,1716.0 799.9,1726.9 23.2,1716.1 24.0,1692.2 51.6,1539.2 59.0,1436.0 35.4,1290.6 29.8,1215.2 36.2,923.5 44.2,430.0 47.5,174.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0018/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[808.0,1336.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6907339203411,45.536337352256034]}},{"type":"Feature","properties":{"resourceCoords":[55.0,556.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.69278669924769,45.53770862785906]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p19","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.22"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0019","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"145.4,971.2 141.3,818.6 130.1,569.1 136.8,523.3 146.8,506.5 134.7,301.6 183.2,305.1 384.1,270.6 713.1,32.1 1055.1,88.0 1454.0,290.1 1586.8,783.8 1559.0,962.6 1504.7,955.8 1513.7,1459.5 1585.2,1559.0 1612.0,1564.2 1612.0,1621.1 1299.0,1752.8 1244.2,1708.2 1153.6,1656.5 1111.4,1656.0 1041.6,1709.5 964.6,1716.9 181.8,1748.7 145.4,971.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0019/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[592.0,1731.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.687666,45.5356997]}},{"type":"Feature","properties":{"resourceCoords":[200.0,432.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6885821,45.5379726]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0021__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p21 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.79"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5540.0"},{"label":"split_canvas_w","value":"4141.6"},{"label":"split_canvas_h","value":"2112.0"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0021__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"884.7,1910.5 885.3,1874.6 939.8,1873.4 969.9,1467.7 813.1,1465.3 813.2,1457.2 22.6,1427.0 22.8,1905.0 884.7,1910.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0021__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1385.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.7187511154014,45.535256734912466]}},{"type":"Feature","properties":{"resourceCoords":[1035.4,1385.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.71607205644784,45.53533186856807]}},{"type":"Feature","properties":{"resourceCoords":[1035.4,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.71601772157065,45.53436776154608]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.71869678052421,45.53429262789047]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0021__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p21 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"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":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0021__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"23.2,780.5 53.3,1383.3 1029.7,1383.8 1029.8,1385.0 1031.3,1385.0 1031.5,1406.9 1063.5,1825.1 1172.6,1871.7 1505.7,1874.5 1520.0,184.2 1486.2,174.8 675.4,77.2 677.7,338.1 457.4,338.1 76.8,339.0 53.8,742.9 1.0,745.0 1.0,780.8 23.2,780.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0021__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[676.0,328.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.71466220686212,45.535221893058335]}},{"type":"Feature","properties":{"resourceCoords":[676.0,-66.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.71468606935208,45.53594578756446]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p22","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0022/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0022","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"164.2,185.0 167.8,186.0 396.2,253.4 667.8,337.2 763.8,341.0 1550.8,341.7 1544.8,722.7 1558.0,722.8 1540.8,1786.0 1568.9,1811.0 1612.0,1850.9 1612.0,1855.3 1600.3,1896.7 1596.0,1897.0 1596.0,1912.0 1520.0,1912.0 1393.5,1772.6 990.0,1752.8 816.9,1887.1 136.8,1876.0 164.2,185.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0022/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[710.0,724.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.710983,45.5345631]}},{"type":"Feature","properties":{"resourceCoords":[1542.0,1113.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.7087709,45.533896]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p23","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0023","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"229.8,1747.1 201.3,1722.4 101.9,1631.8 74.0,1607.3 82.8,556.2 69.8,556.2 72.8,179.4 104.2,179.4 620.7,178.9 1571.9,174.6 1574.4,558.1 1568.9,1757.7 229.8,1747.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0023/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[819.0,556.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.7068083,45.5346452]}},{"type":"Feature","properties":{"resourceCoords":[70.0,942.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.7087709,45.533896]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p24","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0024","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"45.6,1767.5 41.7,1767.4 46.0,558.9 43.1,172.4 797.2,170.8 1552.0,167.0 1554.8,551.5 1557.7,1710.1 803.2,1717.7 80.9,1720.0 45.6,1731.8 45.6,1757.7 45.6,1767.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0024/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[800.0,944.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.702798,45.5339943]}},{"type":"Feature","properties":{"resourceCoords":[1552.0,167.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.7008639,45.5354576]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p25","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"},{"label":"confidence","value":"1.00"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0025/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0025","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"48.6,558.8 47.9,172.3 433.4,170.3 1289.7,173.3 1600.3,173.8 1596.3,1336.1 1598.6,1728.5 824.0,1725.0 45.5,1723.0 48.6,558.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0025/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[824.0,948.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6987756,45.5340735]}},{"type":"Feature","properties":{"resourceCoords":[824.0,1725.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.69872,45.532648]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p26","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"},{"label":"confidence","value":"1.00"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0026/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0026","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"972.6,1724.8 814.6,1723.8 45.9,1730.5 42.6,1340.1 44.1,183.7 434.0,184.3 1241.5,178.0 1421.6,184.9 1582.8,223.4 1582.8,954.5 1586.2,1294.9 1583.6,1722.1 972.6,1724.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0026/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[814.0,955.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.69472,45.534146]}},{"type":"Feature","properties":{"resourceCoords":[814.0,567.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6947456,45.5348615]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p27","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0027/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0027","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"42.9,177.0 824.3,175.2 1050.8,160.6 1604.3,161.6 1598.3,1337.7 1603.3,1724.0 1202.4,1721.6 823.4,1724.0 42.8,1722.5 45.5,1290.0 42.2,945.3 42.4,205.1 42.9,177.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0027/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[827.0,559.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.69068077845986,45.53492215608197]}},{"type":"Feature","properties":{"resourceCoords":[66.0,1726.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6925828817793,45.532761636446594]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0028/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p28","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"19"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0028/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0028","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"27.6,1332.7 36.5,166.2 778.9,170.0 852.0,166.3 920.4,118.7 960.4,121.0 1043.9,173.8 1093.8,218.5 1396.8,107.0 1399.2,53.8 1413.1,57.1 1448.2,88.0 1523.0,154.2 1561.7,188.1 1569.4,555.4 1584.4,555.1 1578.1,944.8 1576.7,1294.9 1580.9,1721.5 1190.2,1723.0 803.0,1716.2 422.6,1713.8 31.6,1715.8 27.6,1332.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0028/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[804.0,939.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6866176,45.5343018]}},{"type":"Feature","properties":{"resourceCoords":[804.0,1330.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6865891,45.5335838]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0029/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p29","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0029/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0029","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"157.3,1720.5 928.8,1718.0 1332.5,1777.0 1612.0,1542.4 1592.4,1510.7 1598.5,748.8 1497.0,278.1 1365.1,275.8 908.0,25.9 577.3,78.7 329.1,30.3 137.4,100.2 1.0,68.5 1.0,86.1 83.7,157.7 122.6,191.1 134.1,557.4 149.0,557.0 146.6,945.8 146.8,963.5 148.8,1295.0 157.3,1720.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0029/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[149.0,1333.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6845637,45.5336178]}},{"type":"Feature","properties":{"resourceCoords":[149.0,557.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6845997,45.5350465]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p3","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.43"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"29.1,276.1 158.8,161.8 281.9,190.3 401.0,36.5 1468.1,36.1 1571.7,209.2 1499.1,615.8 1551.3,941.8 1526.5,1747.0 1612.0,1812.2 1612.0,1870.1 1506.1,1859.5 1473.3,1860.2 1308.4,1860.5 1230.2,1869.1 1109.8,1770.3 836.0,1546.7 730.5,1457.6 552.7,1320.4 464.6,1245.0 91.8,958.2 29.1,276.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.7024214,45.5418137]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.6996259,45.5440356]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.6958635,45.5417134]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.698659,45.5394915]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0031/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p31","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0031/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0031","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"849.9,1730.9 415.6,1726.5 174.8,1729.9 133.9,1722.4 88.8,1669.7 83.7,1663.6 80.6,954.0 51.0,954.1 51.2,521.9 51.7,212.1 51.7,186.0 87.4,174.1 816.4,173.8 1577.8,168.3 1579.7,596.4 1578.4,952.0 1581.1,1730.3 849.9,1730.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0031/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1566.0,952.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.70073873311871,45.53118031986299]}},{"type":"Feature","properties":{"resourceCoords":[1566.0,563.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.70076398863071,45.531891033814425]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0032/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p32","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0032/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0032","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"30.5,1726.7 28.5,952.6 30.1,598.9 28.5,173.2 806.0,174.0 1579.7,176.3 1578.6,1299.1 1583.4,1379.7 1582.3,1727.5 30.5,1726.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0032/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[806.0,952.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6986675,45.5312188]}},{"type":"Feature","properties":{"resourceCoords":[806.0,174.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.69872,45.532648]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0033/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p33","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0033/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0033","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"53.8,1382.7 49.2,1302.5 52.4,185.8 820.0,181.0 977.8,182.5 1587.8,181.3 1585.9,572.6 1589.5,1003.2 1590.3,1376.8 1586.5,1732.2 52.0,1728.6 53.8,1382.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0033/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[820.0,957.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6946111,45.5312952]}},{"type":"Feature","properties":{"resourceCoords":[820.0,181.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6946677,45.5327283]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0034/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p34","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"20"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0034/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0034","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"57.0,1383.2 51.0,1010.4 41.5,580.7 38.0,190.1 806.5,182.9 1179.5,176.3 1574.2,174.2 1584.1,902.8 1591.1,1333.4 1594.7,1720.3 58.0,1738.0 57.0,1383.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0034/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[813.0,959.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6905679,45.5313639]}},{"type":"Feature","properties":{"resourceCoords":[58.0,1738.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6925339,45.5299028]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0035/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p35","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"20"},{"label":"confidence","value":"1.00"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0035/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0035","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"243.1,1337.8 241.0,902.3 239.5,165.4 632.0,162.5 1013.9,164.0 1402.4,169.9 1407.0,559.0 1406.8,1729.2 242.2,1729.2 243.1,1337.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0035/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[630.0,947.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.687514,45.5314241]}},{"type":"Feature","properties":{"resourceCoords":[1407.0,559.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6855104,45.5321701]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0036/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p36","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"19"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0036/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0036","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"430.4,185.0 1196.9,188.7 1196.9,187.8 1597.5,250.6 1538.3,299.4 1515.7,571.7 1589.3,571.9 1589.7,914.4 1580.0,956.0 1579.7,1737.8 1261.3,1730.7 429.9,1730.3 46.8,1727.0 47.5,571.5 43.1,187.3 430.4,185.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0036/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[425.0,956.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6844856,45.5314757]}},{"type":"Feature","properties":{"resourceCoords":[1580.0,956.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6814307,45.5315309]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0037/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p37","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0037/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0037","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"126.0,999.0 135.9,957.1 136.8,612.4 62.8,612.0 86.5,337.9 456.1,35.2 708.1,85.9 1201.1,19.9 1491.2,123.7 1592.4,419.9 1530.3,784.5 1604.8,1604.9 1474.3,1830.4 1457.1,1808.1 1397.7,1735.7 844.6,1789.2 734.1,1776.5 257.5,1776.6 226.6,1787.9 122.7,1786.0 126.0,999.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0037/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[126.0,999.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6814307,45.5315309]}},{"type":"Feature","properties":{"resourceCoords":[513.0,1388.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6803837,45.530836]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0039/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p39","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0039/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0039","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1374.6,1777.5 988.7,1735.2 986.2,1781.6 450.1,1802.0 201.0,1606.2 253.0,1561.0 260.1,1520.5 254.6,1281.9 255.1,851.5 248.0,127.1 632.8,121.5 1411.2,117.8 1612.0,116.8 1612.0,122.3 1612.0,124.3 1540.5,134.8 1534.4,515.0 1590.6,662.2 1534.4,975.8 1536.0,1795.0 1374.7,1803.9 1374.6,1777.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0039/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[640.0,892.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.7026462,45.5290136]}},{"type":"Feature","properties":{"resourceCoords":[253.0,1561.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.7044237,45.5297077]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0041/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p41","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0041/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0041","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"50.9,1536.8 51.8,1336.7 55.8,560.9 54.0,177.4 1594.7,178.2 1595.5,947.7 1592.9,1335.4 1592.4,1715.6 51.1,1714.2 64.3,1692.1 43.4,1536.7 50.9,1536.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0041/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[824.0,948.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6985627,45.5283699]}},{"type":"Feature","properties":{"resourceCoords":[824.0,1336.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6985363,45.527652]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0042/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p42","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0042/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0042","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"47.3,1322.6 50.4,936.2 50.7,169.2 1577.5,172.0 1578.3,554.4 1575.3,1323.5 1576.6,1705.0 46.2,1701.5 47.3,1322.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0042/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[812.0,937.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6945071,45.5284441]}},{"type":"Feature","properties":{"resourceCoords":[812.0,1323.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6944793,45.5277276]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0043/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p43","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"20"},{"label":"confidence","value":"1.00"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0043/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0043","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"40.4,1712.2 39.1,1325.5 42.1,546.1 41.4,158.7 1593.6,161.4 1592.6,549.2 1593.1,1326.5 1589.5,1715.5 73.1,1712.2 40.4,1712.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0043/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[816.0,1326.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6904254,45.5278031]}},{"type":"Feature","properties":{"resourceCoords":[816.0,160.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6905083,45.5299389]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0044/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p44","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"24"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0044/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0044","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1195.5,165.7 1581.7,168.9 1582.2,1714.9 1194.9,1716.5 805.4,1712.2 805.3,1725.5 421.4,1724.0 421.9,1713.8 34.6,1714.1 37.6,1326.4 35.9,551.8 36.2,165.4 1195.5,165.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0044/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[422.0,1326.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6873848,45.5278598]}},{"type":"Feature","properties":{"resourceCoords":[1582.0,1326.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6843411,45.5279144]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0045/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p45","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0045/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0045","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1033.0,1717.4 677.2,1721.4 254.2,1729.9 229.9,177.2 1071.6,164.6 1394.0,166.8 1418.0,1710.6 1033.0,1717.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0045/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1406.0,933.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6813263,45.5286799]}},{"type":"Feature","properties":{"resourceCoords":[242.0,952.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6843673,45.5286233]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0046/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p46","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0046/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0046","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"129.3,193.9 233.3,196.4 264.4,185.3 742.0,187.7 852.6,201.1 1407.1,150.6 1466.3,223.4 1506.1,275.6 1518.2,342.7 1565.1,343.7 1543.0,410.0 1530.2,491.2 1523.4,1041.6 1516.8,1353.5 1521.1,1744.7 1124.6,1734.3 637.9,1729.6 503.2,1733.1 115.0,1732.0 129.3,193.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0046/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[510.0,960.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6803097,45.5286999]}},{"type":"Feature","properties":{"resourceCoords":[115.0,1732.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6812742,45.5272567]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0047/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p47","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0047/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0047","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"239.3,1735.2 233.2,1344.9 238.5,1033.6 242.9,484.2 255.2,403.2 277.1,336.9 230.2,336.1 217.9,269.2 195.2,239.7 325.9,14.3 328.8,46.4 893.0,49.1 1234.8,140.2 1479.3,52.4 1557.6,128.1 1612.0,494.2 1612.0,501.1 1540.4,1644.8 1612.0,1647.0 1612.0,1758.3 1594.7,1750.9 1542.4,1742.7 1394.6,1743.8 1011.7,1742.0 1011.5,1771.6 617.6,1739.9 617.6,1737.7 239.3,1735.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0047/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1002.0,1746.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.67558237804528,45.52734720663869]}},{"type":"Feature","properties":{"resourceCoords":[616.0,1746.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.67659645876041,45.5273254016464]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0049__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p49 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.23"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3284.4"},{"label":"split_canvas_w","value":"3112.4"},{"label":"split_canvas_h","value":"4367.6"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0049__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0049","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"28.6,875.0 27.1,1011.3 99.5,1146.2 28.6,1352.8 34.4,1880.0 602.9,1867.7 605.3,1912.0 614.1,1912.0 632.3,1912.0 676.2,1520.4 628.7,1517.7 608.0,956.2 146.7,947.6 146.1,988.1 28.6,875.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0049__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,821.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.70662417404894,45.52959489708109]}},{"type":"Feature","properties":{"resourceCoords":[778.1,821.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.70462042054693,45.52961964284919]}},{"type":"Feature","properties":{"resourceCoords":[778.1,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.70457118666951,45.52763552585944]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.70657494017154,45.52761078009134]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0049__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p49 [2]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.94"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0049__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0049","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1347.5,1837.9 1548.8,1591.0 1543.8,1585.0 1547.2,877.9 1517.6,877.8 1521.7,447.1 1524.9,148.2 164.4,122.7 135.8,97.3 80.1,45.5 62.9,105.7 1.0,105.5 1.0,121.2 59.1,185.7 91.8,738.8 467.0,744.1 726.8,821.4 730.6,821.4 737.5,821.3 746.1,821.2 764.9,821.1 764.9,821.1 802.1,843.8 778.5,1730.8 892.2,1844.8 893.5,1804.7 1347.1,1820.6 1347.5,1837.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0049__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1521.0,1257.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.7046474,45.5304126]}},{"type":"Feature","properties":{"resourceCoords":[1521.0,489.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.7047156,45.5318203]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.61"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1235.3,1857.5 1233.6,1777.0 1233.0,1747.7 474.9,1650.3 474.1,1620.6 92.9,1774.0 116.1,1409.5 128.4,1314.0 41.0,1218.5 49.7,830.7 146.7,333.5 674.5,35.4 1486.6,45.8 1559.8,199.1 1438.3,642.0 1514.4,629.1 1488.1,1697.4 1235.3,1857.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1136.0,622.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.70520988355658,45.540299263562694]}},{"type":"Feature","properties":{"resourceCoords":[389.0,941.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.707172898997,45.53970608171784]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0050/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p50","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0050/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0050","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"701.6,1796.5 321.7,1773.0 228.5,1717.6 226.1,170.8 1391.0,170.0 1392.7,561.7 1394.4,939.1 1393.6,1303.7 1383.5,1349.8 1393.8,1429.8 1074.4,1655.2 936.0,1732.3 809.0,1781.5 701.6,1796.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0050/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[617.0,170.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.696455,45.5262655]}},{"type":"Feature","properties":{"resourceCoords":[1391.0,170.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6964075,45.5248384]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0051/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p51","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"17"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0051/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0051","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"231.9,1678.8 245.9,162.9 725.0,167.4 1410.5,171.1 1407.2,562.5 1399.4,1721.8 1010.8,1719.1 623.5,1718.6 623.5,1734.4 231.7,1707.5 231.9,1678.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0051/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[630.0,946.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6903885,45.5263754]}},{"type":"Feature","properties":{"resourceCoords":[1402.0,1330.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6913234,45.524937]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0052/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p52","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0052/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0052","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"211.3,1725.9 216.9,175.0 216.9,171.0 609.0,195.7 608.9,179.8 996.4,178.2 1385.1,178.7 1384.8,567.2 1383.8,1731.2 211.3,1725.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0052/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[994.0,952.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6943993,45.5255931]}},{"type":"Feature","properties":{"resourceCoords":[994.0,1729.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6964307,45.5255525]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0053/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p53","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0053/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0053","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1047.3,1538.0 587.5,1532.9 236.2,1532.7 235.9,848.0 237.6,369.4 625.8,370.2 625.2,380.4 1009.8,383.1 1010.0,369.7 1400.3,375.2 1396.6,1497.4 1393.0,1538.3 1047.3,1538.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0053/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1012.0,1537.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6862607,45.5250269]}},{"type":"Feature","properties":{"resourceCoords":[1398.0,1148.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.685279,45.5257606]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0054/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p54","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0054/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0054","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"220.1,1503.8 224.4,382.8 612.0,382.5 1033.6,382.0 1388.2,384.6 1385.0,1160.0 1385.0,1548.0 216.5,1544.7 220.1,1503.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0054/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1385.0,1160.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6822293,45.525813]}},{"type":"Feature","properties":{"resourceCoords":[1385.0,1548.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6821998,45.5251005]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0055/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p55","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0055/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0055","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"823.2,375.1 1213.0,372.8 1213.0,1544.0 822.6,1543.9 438.1,1543.7 437.1,1154.2 438.0,375.8 823.2,375.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0055/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1213.0,765.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6802297,45.5265622]}},{"type":"Feature","properties":{"resourceCoords":[1213.0,1544.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6801764,45.5251371]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0056/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p56","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0056/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0056","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"437.0,386.6 922.2,386.8 1317.5,393.6 1319.4,427.0 1319.9,1554.0 303.1,1554.0 302.8,391.4 437.0,386.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0056/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[924.0,780.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6785959,45.526593]}},{"type":"Feature","properties":{"resourceCoords":[924.0,1554.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6785433,45.5251666]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0057/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p57","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0057/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0057","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1010.0,178.0 1010.0,209.7 1009.6,1369.3 1010.9,1730.3 634.3,1729.5 634.0,1341.8 632.8,211.2 630.9,177.6 1010.0,178.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0057/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1010.0,954.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6765417,45.5259152]}},{"type":"Feature","properties":{"resourceCoords":[1010.0,178.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6765929,45.5273407]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0058/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p58","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0058/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0058","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"625.6,1360.0 626.0,203.9 626.0,174.5 1019.7,203.9 1019.7,208.2 1020.0,1295.3 1018.4,1364.0 1021.2,1719.8 626.9,1719.8 625.6,1360.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0058/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[626.0,1332.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6765162,45.5252038]}},{"type":"Feature","properties":{"resourceCoords":[626.0,559.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6765673,45.5266282]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0059/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p59","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0059/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0059","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"624.6,1373.6 626.1,1304.4 622.1,209.0 621.9,174.9 1007.4,173.2 1011.9,1729.8 628.7,1732.1 624.6,1373.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0059/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[624.0,952.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6755077,45.525934]}},{"type":"Feature","properties":{"resourceCoords":[1011.0,1340.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6744754,45.5252398]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p6","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.36"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1418.1,1752.3 663.9,1773.8 664.2,1767.1 196.0,1633.0 295.4,605.6 220.3,612.8 369.8,189.7 387.3,234.6 666.9,234.2 715.6,159.1 978.3,193.3 1218.3,146.9 1227.8,22.4 1612.0,350.1 1612.0,369.9 1606.8,469.6 1428.5,489.9 1424.8,565.1 1444.7,850.5 1456.3,996.4 1439.2,1362.2 1418.6,1739.9 1418.1,1752.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0006/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.7051304,45.541386]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.7007978,45.5416156]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.70040900000001,45.5380166]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.7047416,45.537787]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0060/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p60","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0060/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0060","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"590.9,1721.8 618.1,152.3 768.2,152.9 821.2,161.8 938.2,213.8 979.8,285.1 978.3,364.2 992.8,586.2 1006.5,637.5 994.0,1335.0 980.6,1729.6 590.9,1721.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0060/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[994.0,1335.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6734501,45.5252587]}},{"type":"Feature","properties":{"resourceCoords":[994.0,558.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6735347,45.5266669]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0061/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p61","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0061/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0061","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"456.1,1381.5 472.3,692.2 459.1,641.4 445.9,422.0 447.9,343.8 407.2,273.0 309.1,228.8 310.9,117.1 836.5,142.2 903.0,230.5 1126.5,506.9 1188.3,590.8 1196.2,660.2 1209.7,690.5 1208.0,764.0 1282.0,1416.5 1230.2,1416.7 1224.3,1787.7 1191.8,1786.8 830.0,1778.0 440.8,1771.5 456.1,1381.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0061/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[830.0,1390.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6724708,45.5252758]}},{"type":"Feature","properties":{"resourceCoords":[830.0,1778.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6724224,45.5245645]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0062/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p62","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.51"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0062/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0062","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"421.3,1387.6 471.5,1390.6 439.6,753.3 445.8,682.0 434.5,651.9 431.1,584.0 376.2,498.9 176.3,217.1 117.3,127.4 171.6,133.4 252.8,49.0 611.8,53.0 741.1,117.6 794.0,224.1 1164.0,322.7 1191.7,527.0 1314.0,590.9 1359.7,696.6 1272.2,1096.5 1355.8,1573.0 1336.9,1743.4 1264.3,1749.7 1256.1,1824.3 853.5,1784.9 810.8,1783.8 392.9,1747.2 421.3,1387.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0062/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[832.0,1786.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6702014,45.5245998]}},{"type":"Feature","properties":{"resourceCoords":[832.0,1396.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6703174,45.5253318]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0063/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p63","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0063/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0063","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1313.7,256.8 1308.2,1309.0 1220.4,1571.7 1221.0,1633.7 1107.2,1635.4 1107.0,1637.0 1097.9,1733.2 307.6,1732.0 307.0,1338.0 305.3,175.0 1183.6,179.5 1340.2,190.3 1316.0,256.6 1313.7,256.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0063/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[693.0,562.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6943504,45.5241681]}},{"type":"Feature","properties":{"resourceCoords":[693.0,1337.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6963783,45.5241309]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0064/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p64","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0064/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0064","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"23.0,1291.0 231.3,1265.9 301.0,1349.2 289.9,1794.6 389.9,1849.9 835.3,1861.0 970.5,1771.6 1037.1,1577.0 1418.0,1556.2 1371.0,1101.1 1458.2,761.2 1531.5,756.9 1535.8,1.0 1422.6,1.0 1422.5,1.6 1412.0,97.0 627.6,83.8 622.5,460.6 615.1,824.5 604.2,870.4 613.1,950.4 290.1,1169.7 150.6,1244.2 23.0,1291.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0064/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[616.0,474.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.69846736762057,45.52481004140329]}},{"type":"Feature","properties":{"resourceCoords":[215.0,474.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.69851108172033,45.52555015575653]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0065/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p65","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0065/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0065","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1422.8,1881.8 1385.8,1842.3 1329.4,1751.8 1288.7,1719.2 1239.0,1715.0 982.3,1711.7 282.9,1712.3 239.3,1716.9 239.2,1326.2 238.5,975.2 242.4,515.7 241.9,170.2 282.1,175.2 433.4,174.1 530.3,183.0 569.9,155.1 667.6,149.8 836.4,162.2 1261.8,161.2 1373.0,179.3 1500.4,230.0 1589.8,390.7 1535.0,1607.3 1422.8,1881.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0065/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[631.0,942.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.68725887834404,45.52429329092666]}},{"type":"Feature","properties":{"resourceCoords":[631.0,1330.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6882756491158,45.524274848375455]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0066/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p66","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0066/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0066","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1266.9,1726.6 1110.7,1717.1 234.9,1720.1 231.0,1333.0 219.5,177.6 263.0,172.6 961.4,166.2 1217.7,167.3 1267.3,171.2 1308.3,203.4 1365.3,293.3 1402.6,332.4 1512.4,57.4 1486.5,763.0 1361.9,760.8 1309.1,840.6 1251.3,1206.3 1337.4,1317.9 1432.8,1319.6 1490.9,1768.1 1243.3,1792.8 1266.9,1726.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0066/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[997.0,166.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6892498,45.5235462]}},{"type":"Feature","properties":{"resourceCoords":[231.0,1333.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6923483,45.5249171]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0067/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p67","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"19"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0067/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0067","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"240.2,1688.6 242.8,1299.0 249.8,276.8 638.3,279.5 1348.8,285.3 1448.2,288.8 1438.5,647.5 1432.9,945.2 1410.1,981.2 1410.5,1238.7 1393.5,1269.4 1391.8,1349.7 1409.9,1379.3 1404.0,1697.1 240.2,1688.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0067/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[634.0,916.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6791411,45.524443]}},{"type":"Feature","properties":{"resourceCoords":[1021.0,1304.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.680123,45.5237105]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0068/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p68","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"25"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0068/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0068","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1359.5,1708.2 1247.2,1689.8 817.4,1690.7 646.8,1678.2 548.0,1683.4 508.1,1711.7 410.2,1702.7 257.3,1703.8 216.7,1698.7 216.7,517.7 216.8,130.6 1391.0,131.5 1506.2,129.2 1497.7,1036.2 1557.5,1305.0 1495.2,1414.7 1488.2,1759.4 1359.5,1708.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0068/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1002.0,912.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6831692,45.5236547]}},{"type":"Feature","properties":{"resourceCoords":[1002.0,131.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6811436,45.5236918]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0069/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p69","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0069/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0069","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"587.9,1256.4 634.8,1173.6 637.3,1073.8 636.0,360.1 1015.0,360.0 1015.9,1073.4 1011.1,1139.5 988.0,1236.9 906.0,1429.2 859.6,1508.8 826.2,1482.1 799.8,1462.0 629.7,1396.7 544.3,1382.7 529.4,1334.8 587.9,1256.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0069/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1015.0,750.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6764652,45.5237772]}},{"type":"Feature","properties":{"resourceCoords":[1015.0,360.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6764882,45.5244891]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"34.9,830.6 54.2,979.3 55.4,1354.4 53.7,1741.9 823.3,1746.9 823.3,1739.1 1207.5,1725.5 1235.5,1742.5 1598.5,1743.2 1598.7,1348.3 1596.3,821.6 1595.2,217.9 1246.3,266.4 1109.7,283.1 888.8,320.0 774.0,333.2 311.7,411.2 181.6,311.0 181.3,432.7 1.0,462.4 1.0,548.1 34.9,830.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[828.0,1360.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.69895648752794,45.539054342627786]}},{"type":"Feature","properties":{"resourceCoords":[80.0,822.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.70095914647325,45.540009686122644]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0070/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p70","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0070/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0070","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"943.5,1427.8 934.1,1454.0 526.7,1383.5 585.0,1246.9 608.1,1149.5 612.9,1083.4 612.0,370.0 1010.1,368.9 1009.5,788.2 1011.2,1081.7 1016.2,1236.7 1007.3,1279.0 945.7,1422.5 943.5,1427.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0070/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[612.0,760.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6764652,45.5237772]}},{"type":"Feature","properties":{"resourceCoords":[612.0,370.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6764882,45.5244891]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0071/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p71","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0071/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0071","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"634.3,1250.6 643.1,1208.4 638.0,1053.8 636.1,761.3 636.2,343.4 1019.0,341.0 1018.8,1016.2 1025.7,1328.4 1012.5,1431.8 912.8,1406.4 573.0,1393.6 634.3,1250.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0071/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1019.0,730.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6744288,45.5238147]}},{"type":"Feature","properties":{"resourceCoords":[1019.0,341.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6744509,45.524527]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0072/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p72","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0072/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0072","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"619.6,1332.8 612.8,1021.5 613.0,348.0 998.2,347.9 1002.6,897.5 1003.1,1504.2 991.2,1592.8 606.5,1436.0 619.6,1332.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0072/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[613.0,736.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6744288,45.5238147]}},{"type":"Feature","properties":{"resourceCoords":[613.0,348.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6744509,45.524527]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0073/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p73","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0073/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0073","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1010.2,199.7 1022.0,587.0 1024.9,895.3 1032.7,1173.1 1071.4,1351.4 1065.8,1430.8 1000.4,1594.0 624.4,1444.3 635.7,1356.1 631.2,752.4 623.2,205.7 1010.2,199.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0073/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[632.0,974.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6733877,45.5231249]}},{"type":"Feature","properties":{"resourceCoords":[1022.0,587.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6723759,45.52385]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0074/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p74","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0074/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0074","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"595.9,1614.2 664.5,1449.2 671.1,1368.6 634.0,1186.9 629.8,904.5 630.8,591.2 623.8,197.4 989.5,199.0 989.9,590.5 1020.9,590.8 1026.8,828.5 1027.1,1278.4 1051.5,1435.3 1052.8,1488.5 1038.7,1576.5 969.7,1770.2 941.3,1758.2 926.1,1794.0 877.2,1912.0 547.1,1912.0 471.9,1912.0 550.8,1723.0 595.9,1614.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0074/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[980.0,1759.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.67138674026289,45.521747630324676]}},{"type":"Feature","properties":{"resourceCoords":[624.0,591.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.67239342142211,45.52384998447523]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0075/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p75","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0075/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0075","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"877.6,1749.0 565.7,1614.0 637.4,1423.4 652.9,1336.5 652.5,1283.8 631.1,1128.0 638.6,682.5 637.0,447.0 606.2,446.2 612.7,58.5 645.3,59.5 1077.2,69.2 1023.9,454.4 1059.5,454.6 1050.9,882.1 1012.0,879.2 1008.9,1253.0 1028.6,1284.0 1021.1,1360.1 988.2,1590.3 947.0,1764.0 877.6,1749.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0075/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[947.0,1764.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6703977,45.5214837]}},{"type":"Feature","properties":{"resourceCoords":[629.0,59.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6714321,45.5245806]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0076/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p76","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.67"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0076/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0076","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"651.0,69.3 1068.0,62.4 1068.7,264.9 1194.1,301.4 1246.8,610.6 1453.2,631.9 1506.2,1051.7 1470.0,1213.8 1285.8,1207.2 1168.6,1406.5 1154.7,1868.5 559.8,1803.2 560.0,1775.0 592.6,1599.2 614.3,1367.3 618.0,1290.9 596.8,1260.8 581.6,886.8 620.6,887.8 608.1,459.7 572.6,461.2 607.0,73.3 651.0,69.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0076/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[560.0,1775.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6703977,45.5214837]}},{"type":"Feature","properties":{"resourceCoords":[629.0,73.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6702014,45.5245998]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0078/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p78","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"23"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0078/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0078","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"127.8,768.1 422.4,649.8 442.6,621.6 517.1,591.9 552.0,595.6 788.7,494.9 830.7,501.9 1106.8,391.1 1440.6,260.4 1428.7,354.4 1404.6,448.6 1366.7,563.8 1369.5,1635.3 1369.6,1654.1 1275.8,1692.7 1274.2,1811.4 1211.4,1709.6 1019.3,1681.2 743.4,1700.9 508.6,1807.1 353.1,1647.6 179.4,870.8 173.7,872.6 127.8,768.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0078/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[960.0,860.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6791704,45.5222784]}},{"type":"Feature","properties":{"resourceCoords":[353.0,1638.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6813872,45.5213463]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0079/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p79","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.19"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0079/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0079","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"237.9,1246.2 85.4,1249.3 63.2,857.7 237.6,858.5 238.2,465.4 435.6,467.5 245.9,84.2 393.5,84.2 399.9,319.6 920.6,294.8 935.7,368.1 1214.5,366.6 1310.6,498.1 1304.8,784.2 1225.0,953.4 1271.3,1363.9 1236.1,1650.2 502.9,1727.5 496.1,1837.6 437.4,1837.9 436.3,1632.5 267.5,1618.8 265.9,1325.3 237.8,1320.2 237.9,1246.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0079/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1024.0,858.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.659721,45.5200791]}},{"type":"Feature","properties":{"resourceCoords":[1024.0,1634.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.659732,45.5186521]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0080/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p80","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0080/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0080","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"198.6,572.3 235.6,457.3 267.6,495.4 351.0,475.4 531.5,469.9 538.3,471.6 563.4,478.0 604.1,489.6 615.9,399.1 616.2,339.1 1015.6,247.2 1025.8,447.6 1030.2,783.0 1041.0,1207.8 1047.3,1724.4 1013.9,1659.4 891.2,1707.7 593.7,1651.6 491.4,1691.8 420.1,1570.4 255.4,1639.5 209.1,1640.1 198.6,572.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0080/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[610.0,1636.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6779146,45.5204166]}},{"type":"Feature","properties":{"resourceCoords":[1026.0,470.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6757742,45.5221347]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0081/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p81","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0081/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0081","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"952.5,1912.0 947.0,1912.0 887.1,1814.9 621.8,1821.9 619.5,1303.0 611.9,876.4 610.0,539.5 600.1,310.4 600.0,304.7 918.8,187.8 1020.5,173.5 1030.0,1896.2 952.5,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0081/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[610.0,562.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6757742,45.5221347]}},{"type":"Feature","properties":{"resourceCoords":[1029.0,1728.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6758465,45.5198626]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0082/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p82","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0082/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0082","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"952.2,1799.4 601.5,1888.3 596.7,164.8 1012.8,165.1 1015.6,201.3 1019.5,907.0 1017.8,1213.6 1020.9,1802.3 952.2,1799.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0082/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1017.0,554.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6737416,45.521588]}},{"type":"Feature","properties":{"resourceCoords":[601.0,1720.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6758465,45.5198626]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0083/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p83","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0083/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0083","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"604.9,1219.7 607.5,913.0 605.7,207.2 603.0,171.1 1010.5,171.9 1010.1,288.6 1008.8,525.6 1009.3,562.1 1008.0,951.0 1140.0,951.3 1247.6,951.9 1161.7,1340.2 1051.3,1339.8 1367.9,1708.8 1318.7,1727.2 1205.1,1717.1 1130.2,1691.8 1083.5,1665.4 1007.6,1596.4 1011.8,1827.0 606.2,1808.5 604.9,1219.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0083/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1008.0,951.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6731198,45.5206569]}},{"type":"Feature","properties":{"resourceCoords":[606.0,560.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6737416,45.521588]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0084/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p84","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.76"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0084/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0084","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1280.7,1395.2 1031.1,1402.2 1030.8,1651.7 957.2,1739.6 700.3,1768.6 575.6,1709.7 577.5,352.2 629.3,73.4 1532.0,74.7 1534.1,176.7 1386.5,175.6 1573.7,560.4 1376.2,556.9 1373.0,950.1 1198.5,948.1 1218.0,1340.0 1370.5,1338.0 1370.0,1412.0 1280.7,1395.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0084/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[606.0,948.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6637971,45.520088]}},{"type":"Feature","properties":{"resourceCoords":[606.0,1334.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6637957,45.5193784]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0085/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p85","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.83"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0085/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0085","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"272.8,1583.2 348.4,1647.2 394.3,1671.1 467.5,1693.1 577.5,1699.1 624.4,1679.7 306.4,1333.8 413.1,1330.6 483.1,952.9 379.1,955.8 251.7,959.9 240.0,584.4 597.7,572.8 587.1,234.4 586.3,197.2 615.8,196.4 944.2,185.6 1011.0,170.0 995.3,224.7 1019.0,893.8 1034.1,1277.5 1040.7,1528.8 1032.3,1574.6 1041.6,1813.9 284.5,1805.6 272.8,1583.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0085/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[622.0,949.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6721833,45.5204049]}},{"type":"Feature","properties":{"resourceCoords":[1011.0,170.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6703977,45.5214837]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0086/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p86","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.54"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0086/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0086","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"623.6,193.9 1206.6,45.9 1269.3,230.4 1342.3,297.8 1341.1,860.2 1214.8,923.8 1183.2,1133.6 1213.1,1296.4 1285.0,1277.2 1349.5,1426.9 1147.8,1542.7 1189.1,1756.6 1085.2,1795.9 1077.7,1901.6 586.3,1879.1 585.3,1629.7 595.6,1582.4 597.9,1320.7 596.0,920.8 595.5,223.6 613.9,167.3 623.6,193.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0086/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[614.0,964.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6711299,45.5201257]}},{"type":"Feature","properties":{"resourceCoords":[614.0,572.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6707695,45.5207938]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0008__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p8 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0008__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"45.9,820.0 41.5,1345.5 36.4,1739.5 429.8,1739.5 806.4,1747.8 806.5,1741.1 1575.3,1774.5 1575.2,1786.7 1611.9,1711.4 1597.3,1712.8 1588.5,1178.7 1612.0,1193.6 1612.0,1129.8 912.7,498.2 914.0,496.9 437.1,19.9 428.9,1.0 381.6,1.0 366.5,17.4 253.8,136.4 206.3,198.7 52.5,217.7 45.9,820.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0008__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[818.0,817.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.69493969756653,45.54014204165381]}},{"type":"Feature","properties":{"resourceCoords":[356.0,27.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.69623625724927,45.54156664734977]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0008__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p8 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.28"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3632.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2820.0"},{"label":"split_canvas_h","value":"2466.4"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0008__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,0.0 908.0,0.0 908.0,397.6 1139.2,616.6 1613.0,616.6 1613.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0008__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[908.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.69527004949347,45.54005079798653]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.6934157675742,45.54007263212598]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,616.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.69338867698204,45.538927948582206]}},{"type":"Feature","properties":{"resourceCoords":[908.0,616.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.69524295890133,45.53890611444276]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Portland, Oregon | 1908 | sanborn07439_006 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.76"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T07:21:50Z","modified":"2026-10-18T07:21:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"78.9,1752.3 53.6,796.8 55.5,796.8 72.4,112.9 80.9,92.6 48.8,58.9 57.9,58.6 164.7,69.2 165.8,11.6 198.7,36.7 1380.5,32.0 1612.0,104.3 1612.0,105.1 1564.7,274.6 1609.2,818.3 1549.0,1859.5 108.5,1884.7 46.5,1870.2 32.0,1797.0 78.9,1752.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd429m:g4294m:g4294pm:g4294pm_g07439190801:07439_01_1908-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[451.0,70.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.6954561994863,45.54215397734813]}},{"type":"Feature","properties":{"resourceCoords":[68.0,70.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.69611437635169,45.54163116671122]}}]}}]}