Egypt. (Great Britain - Undelivered Mail). 1941. Registered Air Mail envelope addressed to Egypt bearing Great Britain SG 470, 6d purple and SG 475, 1s brown with Liverpool registration label with 'Opened by Examiner/ 798' censor label with bilingual 'Returned To Sender/ By The Censor/ For Reason Explained in Memorandum Enclosed in This Cover' tied by Egypt 'Censorship Dept/ 18' hand-stamp on face in violet with 'Return To Sender' and boxed 'Undelivered For reason Stated/ Return To Sender' on face. Very unusual and attractive item.