Isle Of Man. (Internee Camp Mail). 1940. Stamp-less envelope written from 'Palace Internment Camp, House 23, Douglas Isle of Man' in violet (Whitney 670) with 'Official Paid' date stamp in red (653), routed via the 'Chief Postal Censor/ Liverpool' with 'Opened by Censor/ 2173' label on reverse. Very fine and scarce.