A.M.S. (Series) ; L751. "Edition 4-AMS (AFFE)". Transverse Mercator projection. "Prepared under the direction of the Engineer, HQ, AFFE, by the 64th Engineer Battalion (Base Topographic). Compiled in 1953 by photogrammetric (multiplex) methods. Coastal hydrography compiled from USHO Chart 5668, 1936. Horizontal and vertical control established by the Korean Government General's Office, 1913-1914."