{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn04046_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Howard City, Michigan | 1887 | mapsnap generated fit (2026-10-17)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-17"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"3"},{"label":"placed","value":"1"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 3 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 43.39691,-85.46804 +/-100m); p1__3 (tier 4, 43.39691,-85.46804 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114hm:g040461887:04046_1887-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Howard City, Michigan | 1887 | sanborn04046_001 p1 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.39"},{"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":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-10-17T23:56:59Z","modified":"2026-10-17T23:56:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114hm:g040461887:04046_1887-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114hm:g040461887:04046_1887-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"87.8,1819.9 296.7,1873.7 357.4,1563.5 742.8,1555.1 1176.5,1561.8 1176.8,1563.5 1177.5,1563.5 1177.5,1567.5 1229.5,1880.8 1533.2,1885.4 1620.9,1821.7 1584.2,1387.2 1590.0,1011.2 1614.2,845.3 986.9,822.3 937.2,823.0 937.2,820.5 934.8,820.4 852.6,45.4 78.7,55.2 54.0,727.4 131.8,837.0 76.1,1168.8 87.8,1819.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd411m:g4114m:g4114hm:g040461887:04046_1887-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1319.0,1603.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.4667176,43.395733]}},{"type":"Feature","properties":{"resourceCoords":[6.0,1601.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.4700884,43.3956992]}}]}}]}