{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn00656_054.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Los Angeles, California | 1950 | key map | mapsnap generated fit (2026-09-21)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-21"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd436m:g4364m:g4364lm:g4364lm_g00656195005:00656_05_1950-0000a/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Los Angeles, California | 1950 | sanborn00656_054 p0a","metadata":[{"label":"streets","value":"77"},{"label":"intersections","value":"415"}],"created":"2026-09-21T04:46:53Z","modified":"2026-09-21T04:46:53Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd436m:g4364m:g4364lm:g4364lm_g00656195005:00656_05_1950-0000a/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd436m:g4364m:g4364lm:g4364lm_g00656195005:00656_05_1950-0000a/info.json","type":"ImageService2","height":8152,"width":5672},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5672.0,8152.0 -0.0,8152.0 -0.0,-0.0 306.2,-0.0 702.2,-0.0 1659.4,-0.0 2370.7,-0.0 2771.9,-0.0 4452.9,-0.0 5453.1,-0.0 5453.3,10.1 5599.6,10.1 5614.8,666.7 5462.8,669.4 5462.4,1033.4 5640.4,1032.3 5643.0,1292.8 5672.0,1298.3 5672.0,1590.5 5482.8,1539.8 5491.3,1981.4 5672.0,1980.1 5672.0,2143.9 5494.5,2143.5 5496.5,2247.1 5560.9,2281.1 5672.0,2339.5 5672.0,2683.6 5585.8,2639.7 5458.7,2875.8 5672.0,2986.8 5672.0,3297.8 5595.3,3298.0 5598.6,3693.2 5499.3,3886.6 5528.4,3902.1 5532.8,4128.1 5632.0,4180.9 5672.0,4189.8 5672.0,5282.0 5637.3,5282.3 5636.9,5698.0 5637.0,5714.7 5672.0,5714.6 5672.0,5921.3 5593.7,5921.1 5597.7,7881.6 5608.6,8051.6 5672.0,8051.4 5672.0,8152.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd436m:g4364m:g4364lm:g4364lm_g00656195005:00656_05_1950-0000a/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1369.5,5159.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-118.286519,34.035201]}},{"type":"Feature","properties":{"resourceCoords":[1825.6,1934.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-118.2647524,34.0327402]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd436m:g4364m:g4364lm:g4364lm_g00656195005:00656_05_1950-0000b/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Los Angeles, California | 1950 | sanborn00656_054 p0b","metadata":[{"label":"streets","value":"60"},{"label":"intersections","value":"371"}],"created":"2026-09-21T04:46:53Z","modified":"2026-09-21T04:46:53Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd436m:g4364m:g4364lm:g4364lm_g00656195005:00656_05_1950-0000b/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd436m:g4364m:g4364lm:g4364lm_g00656195005:00656_05_1950-0000b/info.json","type":"ImageService2","height":8152,"width":5624},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5624.0,8152.0 61.4,8152.0 63.2,8058.7 -0.0,8057.7 26.2,5940.3 80.9,5941.6 104.2,5941.9 108.1,5736.4 86.0,5736.0 73.3,5736.0 81.9,5306.3 116.5,5306.6 137.5,4221.3 97.8,4211.7 -0.0,4157.5 -0.0,3866.7 73.9,3726.4 78.2,3333.7 154.6,3334.8 160.6,3025.8 -0.0,2938.6 -0.0,2823.6 81.4,2679.3 166.4,2724.5 173.1,2382.6 -0.0,2287.6 -0.0,2184.6 176.8,2188.1 186.0,2025.5 -0.0,2023.4 0.0,1584.5 187.5,1638.3 193.1,1347.8 164.3,1341.8 166.7,1083.0 0.0,1081.0 0.0,719.2 148.3,719.2 145.8,66.4 0.0,63.8 0.0,-0.0 5624.0,-0.0 5624.0,8152.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd436m:g4364m:g4364lm:g4364lm_g00656195005:00656_05_1950-0000b/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2769.5,6645.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-118.295898,33.9968745]}},{"type":"Feature","properties":{"resourceCoords":[891.2,6291.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-118.2937357,34.0073147]}}]}}]}