This is one of 262 drawings and 2 paintings presented to the Museum by the artist's family in 2012, and related to John Kingsley Cook's wartime service in the merchant navy between December 1940 and August 1945. This was drawn while he was in captivity in Algeria, between October 1941 and November 1942. It is drawn on the back of a fragment of a small scale navigational chart showing part of the North Pacific Ocean. Fragment includes the Galapagos Islands and part of the coast of Honduras. Fragment is the bottom left corner of the chart. No soundings.