{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03670_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Acton, Massachusetts | 1916 | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"15"},{"label":"placed","value":"2"},{"label":"unplaced","value":"13"},{"label":"fit sources","value":"georef-snap 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 13 panels"},{"label":"unplaced pages","value":"p3__1 (tier 4, 42.47528,-71.47422 +/-180m); p3__2 (tier 1, 42.45959,-71.45493 +/-256m); p3__3 (tier 4, 42.47528,-71.47422 +/-180m); p4__1 (tier 4, 42.47528,-71.47422 +/-180m); p4__2 (tier 4, 42.47528,-71.47422 +/-180m); p4__3 (tier 4, 42.47528,-71.47422 +/-180m); p4__4 (tier 4, 42.47528,-71.47422 +/-180m); p4__5 (tier 4, 42.47528,-71.47422 +/-180m); p4__6 (tier 4, 42.47528,-71.47422 +/-180m); p5__1 (tier 4, 42.47528,-71.47422 +/-180m); p5__2 (tier 4, 42.47528,-71.47422 +/-180m); p5__3 (tier 1, 42.35067,-71.53772 +/-213m); p5__4 (tier 4, 42.47528,-71.47422 +/-180m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036701916:03670_1916-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Acton, Massachusetts | 1916 | sanborn03670_001 p1","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T17:43:14Z","modified":"2026-09-23T17:43:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036701916:03670_1916-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036701916:03670_1916-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"329.9,1770.7 337.9,1630.1 -0.0,1605.8 -0.0,-0.0 1613.0,0.0 1613.0,1913.0 1140.2,1913.0 1156.3,1688.8 798.7,1663.1 789.9,1799.4 329.9,1770.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036701916:03670_1916-0001/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.47568558223315,42.47856601543881]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.4716506685115,42.4786537573027]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.47151056726143,42.475099406381915]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.47554548098309,42.47501166451802]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036701916:03670_1916-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Acton, Massachusetts | 1916 | sanborn03670_001 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T17:43:14Z","modified":"2026-09-23T17:43:14Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036701916:03670_1916-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036701916:03670_1916-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"815.9,137.2 1264.8,133.0 1263.8,0.0 1613.0,0.0 1613.0,1913.0 -0.0,1913.0 -0.0,-0.0 819.0,0.0 815.9,137.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764am:g036701916:03670_1916-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.47681061856449,42.475621421674624]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.47266941822005,42.47549117214035]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.47287738294726,42.47184301157045]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.4770185832917,42.47197326110472]}}]}}]}