Coloured Map. Complied and Reproduced by 512 Field Survey Company, Royal Engineers, October 1943, from Air Photographs dated 1943. Reprinted by 512 Field Survey Company, Royal Engineers, July 1944.

B&W Hydrographic Chart. Mediterranean Archipelago. The Islands of Scarpanto and Kaso (The Ancient Carpathos and Kassos). Surveyed by Captain T. Graves and T. Spratt, Royal Navy, assisted by Lieutenants Lord J. Browne and C. Wilkinson; Messers W. Bent, Mate, J. Millard, Masters Assistant. 1850-1859. Tristoma. Surveyed by J.C. Drew, Midshipman, under the direction of Captain T. Spratt, Royal Navy, C.B., 1859. London. Published at the Admiralty 10th July 1861, under the Superintendence of Captain Washington, Royal Navy, F.R.S., Hydrographer. Large corrections June 1972. Insert for detailed plan of Tristoma (canal between Karathos and Sarla Islands).