Sheet 104B : Sheet D-47K Ayuthaya GSGS 4218 Second Edition-GSGS 1951. Published WO 1942. Second Edition 1951. Reprinted from HIND 1001 Second Edition 1945. Reproduced OS 1951. 3,000/1/51. Grid IVB (Yards).
Sheet 106A : Sheet B-47E Songkhla GSGS 4218 Second Edition-GSGS 1951. Published WO 1941. Second Edition 1951. Reproduced OS 1951 from HIND 1001. 3,500/3/51. Malay Grid (Yards)
Sheet 106G : Sheet B-47R Betong GSGS 4218 First Edition 1941, reprinted 1945. Copied from map compiled FMS&SSSD. Date of Compilation 1934. Date of Survey unknown. Published WO 1941. Heliographed OS. Printed WO 1941. 4,000/10/45.Ch. Malayan Northern Grid.