{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn07819_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Mifflintown, Pennsylvania | 1891 | 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":"6"},{"label":"placed","value":"3"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 2, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 40.57032,-77.39808 +/-441m); p1__2 (tier 4, 40.57032,-77.39808 +/-441m); p2__1 (tier 4, 40.57032,-77.39808 +/-441m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191891:07819_1891-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Mifflintown, Pennsylvania | 1891 | sanborn07819_002 p1 [3]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.42"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2266.4"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"5385.6"}],"created":"2026-10-18T08:09:00Z","modified":"2026-10-18T08:09:00Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191891:07819_1891-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191891:07819_1891-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"805.8,1726.0 1301.1,1724.0 1304.0,1752.3 1612.0,1604.5 1612.0,1531.8 1580.5,1529.2 1586.5,910.6 1522.9,848.0 920.2,786.1 866.6,672.7 712.0,602.5 160.1,619.4 95.0,711.3 56.0,971.7 59.5,1820.3 345.6,1895.8 333.1,1909.5 631.3,1908.2 631.8,1912.0 671.2,1912.0 741.9,1818.0 806.7,1816.6 805.8,1726.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191891:07819_1891-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[821.0,916.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.3930237,40.5715743]}},{"type":"Feature","properties":{"resourceCoords":[1295.0,1598.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.395013,40.5703249]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191891:07819_1891-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Mifflintown, Pennsylvania | 1891 | sanborn07819_002 p2 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.82"},{"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":"2026-10-18T08:09:00Z","modified":"2026-10-18T08:09:00Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191891:07819_1891-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191891:07819_1891-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"36.5,507.3 77.8,816.6 33.6,930.0 44.4,1365.2 461.8,1401.1 487.8,1430.7 511.0,1451.1 600.0,1529.6 600.0,1535.3 599.9,1557.8 676.2,1791.8 1179.0,1876.5 1553.2,1853.5 1610.2,1272.5 1504.3,581.0 1583.0,387.9 1574.7,83.9 1215.7,53.0 1215.5,140.3 844.9,317.3 841.5,283.1 246.2,284.2 246.9,393.1 169.1,394.5 83.9,507.4 36.5,507.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191891:07819_1891-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[923.0,887.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.3969389,40.5700244]}},{"type":"Feature","properties":{"resourceCoords":[251.0,887.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.397088,40.5713395]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191891:07819_1891-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Mifflintown, Pennsylvania | 1891 | sanborn07819_002 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.34"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T08:09:00Z","modified":"2026-10-18T08:09:00Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191891:07819_1891-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191891:07819_1891-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1547.2,1766.9 1438.2,1856.4 329.3,1877.8 49.2,1800.5 46.6,1014.6 125.0,242.4 234.1,152.9 621.7,23.1 1349.6,80.0 1415.2,35.1 1548.1,92.2 1612.0,1106.3 1612.0,1116.2 1547.2,1766.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191891:07819_1891-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[970.0,716.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.40250239000204,40.56886787412466]}},{"type":"Feature","properties":{"resourceCoords":[537.0,1317.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.40394222911938,40.569677065886886]}}]}}]}