Description

1942 (Nov 7) Plain Censored envelope by airmail to Berne bearing GB GVI pair 2½d tied blacked out place of origin machine datestamp & senders details cut out from back-flap but with photo copy of proving cover to same intermediary Swiss Agent showing sender was Joseph Buisset, c/o P.O. Box 218, London which was the Undercover address for the Free Belgian Army..