{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn07819_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Mifflintown, Pennsylvania | 1896 | 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":"7"},{"label":"placed","value":"5"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 5"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 40.56992,-77.40051 +/-577m); p2__1 (tier 2, 40.57127,-77.39595 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191896:07819_1896-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Mifflintown, Pennsylvania | 1896 | sanborn07819_003 p1 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.76"},{"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":"3769.6"},{"label":"split_canvas_h","value":"2274.0"}],"created":"2026-10-18T08:37:30Z","modified":"2026-10-18T08:37:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191896:07819_1896-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191896:07819_1896-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"774.4,23.4 173.7,16.6 96.8,93.5 41.0,58.5 41.1,533.8 893.3,547.5 858.4,505.6 921.2,435.7 921.1,72.3 858.3,51.4 860.8,1.0 768.1,1.0 774.4,23.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191896:07819_1896-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[613.2,554.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.4068595,40.5708148]}},{"type":"Feature","properties":{"resourceCoords":[613.2,118.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.4057506,40.5708146]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191896:07819_1896-0001__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 | 1896 | sanborn07819_003 p1 [3]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.25"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2274.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"5378.0"}],"created":"2026-10-18T08:37:30Z","modified":"2026-10-18T08:37:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191896:07819_1896-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191896:07819_1896-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"780.9,1804.6 840.2,1802.0 837.3,1716.2 1324.0,1714.3 1337.1,1747.8 1338.8,1750.1 1612.0,1607.3 1612.0,1554.7 1612.0,1502.7 1580.5,1503.0 1581.9,914.1 1512.8,848.2 938.2,791.6 937.0,789.0 936.1,789.0 936.1,788.9 936.1,788.8 936.1,787.0 883.7,670.6 713.3,610.0 665.9,652.0 651.5,611.9 360.1,605.8 109.3,669.4 58.5,958.0 95.0,1005.1 57.0,1266.5 97.3,1341.8 54.2,1406.6 61.1,1855.8 199.3,1892.0 170.3,1907.1 458.2,1912.0 695.1,1912.0 780.9,1804.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191896:07819_1896-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[833.0,919.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.3930237,40.5715743]}},{"type":"Feature","properties":{"resourceCoords":[833.0,1592.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.3951535,40.571478]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191896:07819_1896-0002__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 | 1896 | sanborn07819_003 p2 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.85"},{"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":"2026-10-18T08:37:30Z","modified":"2026-10-18T08:37:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191896:07819_1896-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191896:07819_1896-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1232.5,69.9 1225.6,198.3 880.6,355.5 878.6,352.5 864.9,310.6 267.1,280.4 265.0,386.0 191.9,385.3 75.3,516.1 81.9,516.6 34.2,1176.7 43.6,1337.2 94.5,1377.7 55.6,1414.8 590.4,1649.2 598.4,1658.9 606.0,1662.3 606.0,1668.0 730.6,1817.8 1571.8,1858.3 1610.8,1030.9 1516.1,645.7 1584.3,230.6 1497.3,82.0 1232.5,69.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191896:07819_1896-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[929.0,900.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.3969389,40.5700244]}},{"type":"Feature","properties":{"resourceCoords":[265.0,386.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.3958165,40.5714306]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191896:07819_1896-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Mifflintown, Pennsylvania | 1896 | sanborn07819_003 p3 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.76"},{"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":"2026-10-18T08:37:30Z","modified":"2026-10-18T08:37:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191896:07819_1896-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191896:07819_1896-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"194.7,1909.4 198.5,1819.5 340.9,1868.1 1143.3,1861.6 1226.1,1555.5 1252.0,1530.0 1305.4,1529.6 1537.7,1453.6 1592.1,1154.9 1560.4,750.3 1599.2,747.0 1599.5,366.9 1585.7,366.6 1576.7,125.2 1377.2,55.8 652.6,19.1 128.0,137.0 42.1,926.0 55.9,1756.8 100.2,1910.2 194.7,1909.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191896:07819_1896-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[960.0,710.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.4024669,40.5688643]}},{"type":"Feature","properties":{"resourceCoords":[1384.0,710.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.4024755,40.5680589]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191896:07819_1896-0003__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 | 1896 | sanborn07819_003 p3 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.63"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"5008.0"},{"label":"split_canvas_y","value":"6109.2"},{"label":"split_canvas_w","value":"1444.0"},{"label":"split_canvas_h","value":"1542.8"}],"created":"2026-10-18T08:37:30Z","modified":"2026-10-18T08:37:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191896:07819_1896-0003__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191896:07819_1896-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1503.8,1911.6 1502.7,1538.1 1268.8,1558.8 1299.4,1788.7 1252.0,1907.9 1503.8,1911.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078191896:07819_1896-0003__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1252.0,1527.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-77.4026073338222,40.56716651423727]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1527.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-77.4025966914815,40.567864055313926]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-77.40161502483673,40.56785540955511]}},{"type":"Feature","properties":{"resourceCoords":[1252.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-77.40162566717743,40.56715786847845]}},{"type":"Feature","properties":{"resourceCoords":[1288.0,1575.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.4024842,40.567235]}}]}}]}