{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03761_001.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Lawrence, Massachusetts | 1888 | key map | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764lm:g037611888:03761_1888-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Lawrence, Massachusetts | 1888 | sanborn03761_001 p1","metadata":[{"label":"streets","value":"89"},{"label":"intersections","value":"162"}],"created":"2026-09-22T22:58:22Z","modified":"2026-09-22T22:58:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764lm:g037611888:03761_1888-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764lm:g037611888:03761_1888-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913.0 0.0,-0.0 1613.0,0.0 1613.0,970.8 1613.0,1913.0 -0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764lm:g037611888:03761_1888-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[423.6,608.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.171584,42.708994]}},{"type":"Feature","properties":{"resourceCoords":[1136.8,578.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.156569,42.712425]}}]}}]}