Sheet 102H : Sheet F-47X Vien Pou Kha GSGS 4218 First Edition 1943. Compiled and published originally SGI 1943. Reprint of portion of SEF sheet 13 SW published 1896 with corrections from extra-departmental information. Published WO 1943. Heliographed OSO 1943. 2500/10/43/16 M.R.S. R.E. Grid IIIB (Yards).