Lot 10929 – 1933 neat envelope bearing strip of three GB 4d tied

1933 incoming envelope bearing strip of three GB 4d tied by London machine cancel and carried on the second Graf Zeppelin South American flight. Red and green flight cachets with manuscript By Graf Zeppelin 3/6/33 via Montevideo at top, backstamped Montevideo Falkland Islands arrival (30 JUN) and large part Brazilian propeller cachet. Rare. Cert R.P.S. (1969).