{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn02552_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Ackley, Iowa | 1916 | 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"},{"label":"pages","value":"11"},{"label":"placed","value":"9"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 8, georef-snap 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"3 sheet(s) cut into 6 panels"},{"label":"unplaced pages","value":"p1__2 (tier 1, 42.55035,-93.04837 +/-106m); p3__2 (tier 1, 42.55524,-93.05665 +/-123m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ackley, Iowa | 1916 | sanborn02552_006 p1 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3970.8"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3681.2"}],"created":"2026-09-22T04:02:21Z","modified":"2026-09-22T04:02:21Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0001__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,3970.8 304.7,4007.0 304.6,4144.3 -0.0,4144.0 -0.0,7652.0 980.0,7652.0 2124.0,7652.0 6452.0,7652.0 6452.0,3970.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5312.0,5149.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.0466281,42.5501741]}},{"type":"Feature","properties":{"resourceCoords":[304.0,5149.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.0498284,42.5501716]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ackley, Iowa | 1916 | sanborn02552_006 p2 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3846.4"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T04:02:21Z","modified":"2026-09-22T04:02:21Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0002__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1412.0,7652.0 2556.0,7652.0 3846.4,7652.0 3839.6,0.0 -0.0,-0.0 -0.0,7652.0 1412.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[783.7,3000.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.0596454,42.5557078]}},{"type":"Feature","properties":{"resourceCoords":[2407.0,3000.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.0586195,42.5557048]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ackley, Iowa | 1916 | sanborn02552_006 p2 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"split_canvas_x","value":"3839.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2612.4"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T04:02:21Z","modified":"2026-09-22T04:02:21Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0002__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7357.1 6452.0,124.0 3987.4,144.0 3987.3,7360.2 6452.0,7357.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3987.4,4212.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.0482395,42.552216]}},{"type":"Feature","properties":{"resourceCoords":[3987.4,144.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.048239,42.5541382]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ackley, Iowa | 1916 | sanborn02552_006 p3 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"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":"2026-09-22T04:02:21Z","modified":"2026-09-22T04:02:21Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0003__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2714.5,25.8 2723.6,3306.4 660.8,3306.4 625.9,6783.4 -0.0,6777.1 -0.0,7652.0 352.3,7652.0 352.8,7442.4 5330.6,7469.7 5340.0,5520.0 6364.0,5534.9 6362.0,5053.3 6130.1,4303.7 5608.5,2856.9 5420.2,2928.0 5365.7,59.7 2714.5,25.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5340.0,5520.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.054692,42.5541497]}},{"type":"Feature","properties":{"resourceCoords":[2832.0,7456.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.0562988,42.5532243]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ackley, Iowa | 1916 | sanborn02552_006 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T04:02:21Z","modified":"2026-09-22T04:02:21Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0004/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0004/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1585.2,5828.2 830.9,3581.6 637.0,3652.5 562.9,3344.1 606.4,726.9 6452.0,815.1 6452.0,5166.0 5267.4,5634.2 5249.9,6336.0 5666.6,6336.5 5649.2,7652.0 513.4,7652.0 531.8,6295.0 1583.0,6319.3 1585.2,5828.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.05508362250174,42.55707322318282]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.05103928092063,42.55711754950573]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.05096841418381,42.5535593663097]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.05501275576492,42.553515039986785]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ackley, Iowa | 1916 | sanborn02552_006 p5","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-22T04:02:21Z","modified":"2026-09-22T04:02:21Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0005/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0005/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,6267.8 1170.8,5772.0 1062.1,1399.1 -0.0,1409.6 -0.0,-0.0 6452.0,0.0 6452.0,6959.1 -0.0,6978.0 -0.0,6267.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[416.0,6968.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.0514729,42.5541657]}},{"type":"Feature","properties":{"resourceCoords":[3032.0,6968.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.0498306,42.5541534]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ackley, Iowa | 1916 | sanborn02552_006 p6","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-22T04:02:21Z","modified":"2026-09-22T04:02:21Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0006/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0006/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 -0.0,7652.0 -0.0,0.0 596.9,0.0 598.7,719.9 960.0,719.0 960.0,504.0 6065.7,519.0 6045.4,6774.0 6452.0,6775.3 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[960.0,4924.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.0578849,42.5511798]}},{"type":"Feature","properties":{"resourceCoords":[960.0,504.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.0578947,42.5532236]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ackley, Iowa | 1916 | sanborn02552_006 p7","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-22T04:02:21Z","modified":"2026-09-22T04:02:21Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0007/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0007/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"751.4,778.9 5868.5,704.2 5876.1,6979.6 6452.0,6979.6 6452.0,7652.0 752.0,7652.0 751.4,778.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[752.0,3592.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.05469,42.5522146]}},{"type":"Feature","properties":{"resourceCoords":[5872.0,3592.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.0514689,42.5522153]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ackley, Iowa | 1916 | sanborn02552_006 p8","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-22T04:02:21Z","modified":"2026-09-22T04:02:21Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0008/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0008/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"676.0,7652.0 667.0,73.7 5795.8,134.6 5791.9,7474.2 3272.2,7476.1 3272.2,7652.0 676.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154am:g025521916:02552_1916-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3272.0,4272.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.0498295,42.5522157]}},{"type":"Feature","properties":{"resourceCoords":[672.0,4272.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.0514689,42.5522153]}}]}}]}