International letter to Sweden with perfin “O.P.” in the stamp. The letter is franked correctly with 30 øre, which was the rate for international letters to Sweden from May 1st 1955 to April 14th 1963. The stamp is cancelled August 26th 1962 with TMS Nr. 155.124 København  OMK.4

O 16 Oversøisk Passagerbureau

Oversøisk Passagerbureau
Vesterbrogade 6 D
1620 København V

“O.P.” has been seen used in the period from October 1937 to December 1974



Known positions

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Green indicates the Perfin position on the current item.

No history yet