Maldive Islands To Sumatera (Sumatra). Indian Ocean. International Chart Series INT 707. Admiralty Chart 4707. 18 January 1974. Scale 1:3,500,000. Small Corrections to 11 February 1976 [printed] and 1976 1690 [hand-stamped violet]. Printed August 1976.
Trincomali (Trincomalee) Harbour. Ceylon, East Coast. Admiralty Chart 816. 4 August 1908. Scale 1:9,092. New Edition 4 May 1945. Large Correction 14 January 1966. Small Correction 1969 621. Printed August 1976.
[Trigonometrical Survey Of The] Maldive Islands, Sheet No.1. [By Commander R. Moresby, assisted by Lieut. F.T. Powell.] Admiralty Chart 66A. [John Walker, Geographer to the East India Company, 10 December 1839. Corrections at the Admiralty October 1866.] Scale 1:292,000. New Edition 13 December 1918. Small Corrections to 1976 355. Printed September 1976.
[Trigonometrical Survey Of The] Maldive Islands, Sheet No.2. [By Commander R. Moresby, assisted by Lieut. F.T. Powell.] Admiralty Chart 66B. [John Walker, Geographer to the East India Company, 10 December 1839. Corrections at the Admiralty October 1866.] Scale 1:292,000. New Edition 13 December 1918. Small Corrections to 1974 1557. Printed July 1976.
Trigonometrical Survey Of The Maldive Islands, Sheet No.3. By Commander R. Moresby, assisted by Lieut. F.T. Powell. Admiralty Chart 66C. John Walker, Geographer to the East India Company, 10 December 1839. Corrections at the Admiralty October 1866. Scale 1:292,000. New Edition 13 December 1918. Large Correction 23 June 1950. Small Corrections to 1973 649. Printed September 1976.
Addu Atoll. Indian Ocean, Maldives. Admiralty Chart 2067. 20 September 1957. Scale 1:25,000. Inset: Gan Anchorage. Scale 1:10,000. New Edition 18 June 1976. Printed January 1977.