Sheet 1K : Sheet J-38Q Maragheh GSGS 3919 Third Edition-GSGS 1948, reprinted K501 (GSGS 3919) Edition 3-GSGS 1958. Reprinted from IDR 9002/5029 May 1943 edition. Published WO. Third Edition 1948. Reproduced WO 1952. Printed for D Survey (WO and AM) by OS. 7500/9/58/5821/O.S. Grid C.