Plans In The Andaman Islands. Bay of Bengal. Admiralty Chart 3145. 6 December 1900. Port Anson. Scale 1:18,200. Elphinstone Harbour. Scale 1:48,000. Eastern Entrance To The Andaman Or Middle Strait. Scale 1:18,150. New Edition 14 July 1961. Small Correction 1962 980. Printed October 1975.