{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn04178_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Saginaw, Michigan | 1895 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"9"},{"label":"placed","value":"1"},{"label":"unplaced","value":"8"},{"label":"fit sources","value":"georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p2 (tier 4, 43.40116,-83.97171 +/-100m); p3 (tier 4, 43.40116,-83.97171 +/-100m); p4 (tier 4, 43.40116,-83.97171 +/-100m); p5__1 (tier 4, 43.40116,-83.97171 +/-100m); p5__2 (tier 4, 43.40116,-83.97171 +/-100m); p6__1 (tier 4, 43.40116,-83.97171 +/-100m); p6__2 (tier 4, 43.40116,-83.97171 +/-100m); p7 (tier 4, 43.40116,-83.97171 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041781895:04178_1895-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Saginaw, Michigan | 1895 | sanborn04178_001 p1","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.04"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:18:15Z","modified":"2026-10-19T01:18:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041781895:04178_1895-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041781895:04178_1895-0001","type":"ImageService3","width":1298,"height":2025},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"63.7,166.4 87.9,79.7 114.7,67.0 118.8,52.7 146.4,47.7 264.2,65.3 316.9,49.8 355.9,59.9 373.7,51.4 380.7,60.4 406.9,49.3 500.0,52.7 791.2,32.8 859.3,49.5 892.3,81.5 901.9,130.3 939.4,191.7 968.6,190.0 1067.8,137.3 1107.2,154.0 1128.0,194.7 1178.4,214.4 1191.7,239.4 1233.5,220.9 1233.9,196.1 1242.7,197.4 1245.6,220.6 1224.0,284.2 1195.4,310.1 1195.7,322.3 1157.8,343.1 1153.6,360.1 1176.4,410.8 1167.9,450.3 1175.8,472.6 1199.1,521.5 1240.7,540.0 1280.6,618.0 1280.6,649.4 1288.8,649.6 1296.7,674.5 1296.8,1546.3 1271.9,1668.9 1248.2,1699.3 1253.6,1793.8 1187.5,1818.5 1149.2,1858.6 1173.6,1909.8 1143.2,1943.4 1075.7,1951.0 996.9,1977.7 870.9,1988.5 819.9,1973.2 780.5,1979.7 650.0,1969.5 459.2,1990.7 410.8,1983.8 360.9,1993.8 221.3,1996.2 95.6,1990.5 51.9,1970.4 40.3,1734.0 48.7,1373.3 83.2,1268.1 99.1,1246.8 67.2,1151.3 50.6,892.8 69.2,281.3 63.7,166.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114sm:g041781895:04178_1895-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[974.0,600.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.9752071,43.4063094]}},{"type":"Feature","properties":{"resourceCoords":[681.0,1779.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.9610862,43.3978684]}}]}}]}