{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02739_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Marcus, Iowa | 1914 | 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":"5"},{"label":"placed","value":"5"},{"label":"unplaced","value":"0"},{"label":"fit sources","value":"georef 5"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 5 panels"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027391914:02739_1914-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marcus, Iowa | 1914 | sanborn02739_001 p1 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.48"},{"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":"2026-10-18T01:57:44Z","modified":"2026-10-18T01:57:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027391914:02739_1914-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027391914:02739_1914-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,1027.1 1.0,1043.5 373.5,1073.1 373.9,1078.5 380.1,1078.5 380.1,1172.8 388.8,1304.4 402.6,1822.8 447.5,1881.3 1047.1,1855.3 1061.0,1267.5 1061.0,1176.8 1063.2,1176.8 1063.3,1170.9 1473.3,1171.1 1528.5,1176.8 1612.0,1169.0 1608.5,1148.5 1612.0,376.1 1541.3,32.2 114.5,51.6 79.5,142.8 121.7,262.9 45.0,343.2 29.0,605.6 77.2,824.5 83.9,824.3 75.9,1026.2 1.0,1027.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027391914:02739_1914-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[817.0,1358.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8078116,42.8245981]}},{"type":"Feature","properties":{"resourceCoords":[817.0,298.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8076226,42.8266907]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027391914:02739_1914-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marcus, Iowa | 1914 | sanborn02739_001 p1 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.59"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4314.0"},{"label":"split_canvas_w","value":"1520.4"},{"label":"split_canvas_h","value":"888.8"}],"created":"2026-10-18T01:57:44Z","modified":"2026-10-18T01:57:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027391914:02739_1914-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027391914:02739_1914-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"294.4,1287.0 359.8,1289.1 346.8,1095.0 6.9,1091.7 7.3,1293.1 137.8,1290.9 153.9,1237.8 222.8,1291.7 235.8,1193.4 294.4,1189.5 294.4,1287.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027391914:02739_1914-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1078.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.80485153158283,42.82353370199404]}},{"type":"Feature","properties":{"resourceCoords":[380.1,1078.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.80378133605211,42.82348110704771]}},{"type":"Feature","properties":{"resourceCoords":[380.1,1300.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.80382335133204,42.823019744410786]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1300.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.80489354686276,42.82307233935711]}},{"type":"Feature","properties":{"resourceCoords":[324.1,1134.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8039496,42.823373]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027391914:02739_1914-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marcus, Iowa | 1914 | sanborn02739_001 p1 [3]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.18"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4244.0"},{"label":"split_canvas_y","value":"4707.2"},{"label":"split_canvas_w","value":"2208.0"},{"label":"split_canvas_h","value":"2944.8"}],"created":"2026-10-18T01:57:44Z","modified":"2026-10-18T01:57:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027391914:02739_1914-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027391914:02739_1914-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1086.6,1685.3 1086.5,1792.1 1095.5,1883.7 1568.1,1897.5 1568.2,1803.8 1563.2,1208.4 1423.0,1254.5 1282.5,1194.9 1102.5,1199.9 1091.2,1517.5 1087.4,1520.0 1086.6,1685.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027391914:02739_1914-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1089.0,1206.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8051884,42.8255158]}},{"type":"Feature","properties":{"resourceCoords":[1569.0,1206.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8037687,42.8254507]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027391914:02739_1914-0001__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marcus, Iowa | 1914 | sanborn02739_001 p1 [4]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.47"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5194.8"},{"label":"split_canvas_w","value":"1520.4"},{"label":"split_canvas_h","value":"977.2"}],"created":"2026-10-18T01:57:44Z","modified":"2026-10-18T01:57:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027391914:02739_1914-0001__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027391914:02739_1914-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"280.1,1500.2 280.4,1327.2 221.9,1367.6 161.4,1319.3 10.0,1333.4 11.0,1537.5 271.6,1526.9 280.1,1500.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027391914:02739_1914-0001__4/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1298.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.8060351141524,42.82493313059696]}},{"type":"Feature","properties":{"resourceCoords":[380.1,1298.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.80496484910216,42.82488130467956]}},{"type":"Feature","properties":{"resourceCoords":[380.1,1543.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.80501033444422,42.82437439351954]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1543.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.80608059949445,42.824426219436944]}},{"type":"Feature","properties":{"resourceCoords":[280.1,1500.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.805284,42.824477]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027391914:02739_1914-0001__5/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marcus, Iowa | 1914 | sanborn02739_001 p1 [5]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.49"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"6172.0"},{"label":"split_canvas_w","value":"1520.4"},{"label":"split_canvas_h","value":"1480.0"}],"created":"2026-10-18T01:57:44Z","modified":"2026-10-18T01:57:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027391914:02739_1914-0001__5/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027391914:02739_1914-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"220.8,1543.0 210.0,1568.5 111.7,1560.7 73.0,1569.3 66.8,1599.2 28.2,1599.6 1.0,1549.0 1.0,1912.0 254.0,1912.0 264.1,1720.5 257.6,1720.6 220.8,1543.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027391914:02739_1914-0001__5/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1543.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.81040691932292,42.826144390872145]}},{"type":"Feature","properties":{"resourceCoords":[380.1,1543.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.80933586571251,42.826102263838685]}},{"type":"Feature","properties":{"resourceCoords":[380.1,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.80939170257203,42.825336160494395]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.81046275618243,42.825378287527855]}},{"type":"Feature","properties":{"resourceCoords":[61.0,1722.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.810262,42.825767]}}]}}]}