The 1960 10c Air Force commemorative stamp was overprinted and surcharged to mark the 50th anniversary of the PAAF. The 10c Air Force stamp had earlier been recalled and invalidated because one million of the stamps had been stolen during transit.
The 10c stamp had been recalled and invalidated
First Day of Issue Cancellation
The PAAF stamp was issued on November 30, 1961.
First Day Covers
(Not in author's collection)