International cash on delivery (COD) with perfin “PIB” in the stamps. The post card is franked correctly with 15 + 40 = 55 øre, see table below. The stamp is cancelled September 29th 1922 with København K. Nr. 79, Kjøbenhavn *1 K. Bro IIIb used in the period from December 22th 1914 to April 14th 1921, so this is unknown date of use for this cancelation stamp. The COD is in swedish kroner which still was aloud at that time.