Greece. (Undelivered Mail - Great Britain). 1941. Air Mail envelope addressed to Athens bearing Great Britain SG 470, 6d purple tied by Fulham date stamp '2th Mar 41' with 'Opened by Examiner/ 538' censor, routed by sea to South Africa and thence air to Cairo with 'Egyptian Censor' label with boxed 'Postal Censor' and framed instructional 'No Service/ Return To Sender' in violet on face and returned 'Nov 41.'
Ex Alistair Kennedy.