{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn01841_008.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Edwardsville, Illinois | 1947 | key map | 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"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104em:g018411947:01841_1947-0001a/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Edwardsville, Illinois | 1947 | sanborn01841_008 p1a","metadata":[{"label":"streets","value":"94"},{"label":"intersections","value":"148"}],"created":"2026-09-23T03:02:31Z","modified":"2026-09-23T03:02:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104em:g018411947:01841_1947-0001a/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104em:g018411947:01841_1947-0001a/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,6866.5 -0.0,2264.1 503.0,2275.7 585.5,2303.3 602.7,2236.7 602.3,2120.7 785.6,2122.8 784.7,2370.9 1231.2,2377.8 1233.8,2490.0 1213.3,2552.3 1212.0,2700.1 1452.5,2702.8 1450.9,2526.6 1439.1,2517.9 1330.8,2517.8 1328.5,2379.2 1250.1,2377.6 1252.0,2243.5 1499.8,2256.6 1500.6,2126.3 1817.5,2134.4 1817.7,2017.6 2054.6,2019.4 2057.4,1925.1 2250.1,1931.6 2246.2,2023.2 2152.2,2021.7 2138.8,2297.5 2197.8,2298.7 2196.3,2406.3 2067.6,2422.2 2064.1,2764.5 2049.3,2810.0 2224.0,2829.1 2197.6,2687.4 2203.8,2673.4 2227.1,2668.9 2211.5,2501.3 2322.8,2490.0 2550.7,2494.3 2567.2,2574.4 2780.7,2534.1 2813.5,2690.0 2736.5,2705.6 2753.5,2800.3 3012.8,2738.7 2988.9,2917.8 2998.5,3011.2 2931.2,3004.2 2930.3,3026.0 2965.1,3276.7 3036.2,3264.7 3082.3,3585.5 3082.3,3671.0 3048.9,3813.3 2887.0,4115.3 3008.0,4158.3 3156.6,4167.4 3151.4,4289.0 3415.8,4301.1 3421.0,4176.1 3607.6,4183.5 3627.8,4064.1 3593.0,3991.4 3523.0,4035.6 3428.2,4045.2 3434.4,3900.2 3500.8,3893.2 3542.2,3860.8 3568.9,3773.4 3577.2,3657.2 3534.1,3344.8 3520.0,3333.9 3428.8,3344.4 3332.0,2862.0 3672.4,2873.9 3669.7,2603.4 3433.9,2650.4 3406.3,2520.5 3670.9,2466.4 3672.0,2212.9 3490.2,2251.2 3462.0,2117.1 3683.1,2080.9 3684.1,2210.4 4000.9,2148.1 4003.6,2422.8 3992.1,2435.0 3896.2,2437.5 3883.7,2606.7 4253.6,2609.7 4254.6,2991.8 4263.3,3000.5 4409.7,3005.0 4419.0,3011.6 4422.9,3033.7 4385.9,3124.9 4235.2,3124.6 4154.6,3139.7 4151.2,3398.4 3886.7,3395.8 3878.2,2974.4 3677.3,2973.0 3676.8,3147.2 3578.4,3171.4 3566.5,3188.6 3566.9,3238.6 3622.5,3316.9 3637.2,3351.7 3628.5,3468.8 3804.6,3470.9 3794.4,4190.3 4155.2,4197.1 4152.0,4423.1 4139.7,4442.4 4048.3,4443.1 4048.3,4485.8 4078.6,4584.4 4069.1,4624.8 4037.9,4663.5 3826.4,4790.8 3535.0,4785.9 3534.5,4886.4 3873.9,4894.6 3929.6,4872.4 4078.3,4782.6 4163.3,4759.0 4287.7,4760.1 4317.8,4771.2 4345.1,4814.0 4347.1,4880.9 4384.2,4859.6 4449.3,4845.3 4552.0,4856.8 4624.2,4901.7 4596.6,4939.3 4584.6,4979.1 4580.1,5210.0 4602.1,5230.5 4601.9,5289.5 4595.7,5332.3 4535.1,5318.7 4339.9,5315.4 4336.6,5534.2 4321.5,5546.9 4294.4,5548.2 4041.9,5547.8 4041.4,5435.0 3795.2,5434.6 3773.8,5407.4 3784.9,5350.9 3759.4,5333.4 3708.5,5328.1 3703.6,5687.4 4712.8,5690.9 4716.9,5621.2 4730.8,5579.2 4769.9,5532.4 4814.3,5507.2 4860.9,5499.4 5273.8,5500.6 5302.2,5476.6 5314.0,5441.0 5318.4,5068.2 5308.2,4865.0 4921.0,4866.0 4926.7,4413.6 4941.5,4402.0 5313.6,4405.3 5315.1,4218.1 4798.7,4210.8 4799.0,4148.1 4723.6,4145.3 4708.5,4125.6 4717.1,4049.3 4731.3,4039.2 4799.9,4039.7 4800.6,3980.3 4637.6,3977.4 4625.0,3960.1 4632.7,3579.9 4759.1,3582.6 4758.1,3388.6 4637.8,3387.4 4646.5,2676.5 4611.2,2588.7 4713.0,2507.4 4802.3,2479.1 4880.8,2466.7 5191.6,2468.3 5202.0,2461.1 5193.7,2436.4 5183.6,2272.6 5155.8,2211.1 5116.7,2174.3 4914.9,2099.7 4794.4,2100.5 4564.6,2147.9 4548.0,1583.5 4415.8,1612.5 4242.4,1615.6 4238.9,1894.2 3812.7,1882.6 3565.0,1926.2 3478.5,1962.1 3432.0,1676.0 3379.0,1703.6 3357.9,1723.6 3301.2,1817.7 3259.5,1840.0 3350.8,2279.7 3221.3,2306.0 3295.1,2680.9 3157.7,2707.8 3109.3,2466.7 2971.3,2496.7 2935.7,2365.3 2718.1,2412.8 2581.0,2408.5 2730.9,2270.5 2467.0,1961.3 2543.1,1894.2 2754.5,2144.7 2791.7,2113.7 2787.1,2085.5 2801.6,2059.2 2843.7,2039.0 2861.2,2054.6 2906.6,2030.4 3165.2,2028.0 3119.3,1799.1 3102.8,1669.6 3231.9,1660.1 3223.3,1544.5 2939.8,1528.6 2856.5,1512.4 2840.5,1502.6 2834.4,1443.1 2822.5,1432.7 2517.3,1430.7 2469.5,1386.2 2349.9,1222.7 2269.7,1269.3 2048.0,1460.8 1932.0,1321.6 2002.8,1260.4 1956.6,1205.7 1884.9,1267.5 1780.8,1147.5 1669.5,1138.5 1621.7,1115.3 1484.0,1079.1 1141.9,1069.3 1146.7,880.4 1313.5,885.0 1339.8,715.8 845.8,498.1 405.3,344.7 292.4,291.5 162.3,205.9 31.5,89.1 -0.0,52.9 -0.0,0.0 6452.0,0.0 6452.0,7652.0 -0.0,7652.0 -0.0,6866.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104em:g018411947:01841_1947-0001a/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1293.4,847.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.971164,38.822021]}},{"type":"Feature","properties":{"resourceCoords":[3432.1,4000.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.9510105,38.799126]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104em:g018411947:01841_1947-0001b/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Edwardsville, Illinois | 1947 | sanborn01841_008 p1b","metadata":[{"label":"streets","value":"91"},{"label":"intersections","value":"145"}],"created":"2026-09-23T03:02:31Z","modified":"2026-09-23T03:02:31Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104em:g018411947:01841_1947-0001b/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104em:g018411947:01841_1947-0001b/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3714.8,7535.8 2799.7,7491.4 1133.5,7331.6 1112.2,7328.7 -0.0,6903.6 -0.0,6805.1 -0.0,6394.2 0.0,2114.2 0.0,0.0 8.9,0.0 4056.3,816.9 6452.0,3273.1 6452.0,3975.9 5724.1,7205.9 5717.5,7223.9 5234.9,7496.8 4120.4,7542.8 3714.8,7535.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd410m:g4104m:g4104em:g018411947:01841_1947-0001b/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3755.2,1331.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.9481802,38.8189113]}},{"type":"Feature","properties":{"resourceCoords":[3895.2,2830.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.946798,38.808102]}}]}}]}