1943 KGVI 5½d BISTRE REGISTERED MAIL LONDON TO DAVOS, UPRATED KGVI 2½d WITH CENSORSHIP CANCELLATIONS. KGVI 5½d bistre registered envelope sent airmail London to Davos, Switzerland uprated KGV 2½d light ultramarine (SG489) cancelled very heavy circular handstamps to obliterate place of posting leaving date stamps 19 OC 43 clear. On reverse 'DAVOS' date stamp 15 XI 43 and at right British and German censor labels. (Ref 144558).
