Sheet 1D : Sheet J-38U Ruwandiz GSGS 3919 Third Edition 1947, reprinted K501 (GSGS 3919) Edition 3-GSGS 1958. Published WO 1941. Reprinted from IDR 9002/5239 1943 edition. Third Edition 1947. Reproduced WO 1947. Printed for D Survey (WO and AM) by OS. 10,000/9/58/5812/O.S. Grids B & C (Metre).