International letter with perfin “APM” in the stamp. The letter is franked correctly with 5 x 8 øre = 40 øre, which was the rate for international letters from February 1st 1921 to October 30th 1925. The stamp is cancelled September 7th 1922 with a whole letter cancellation machine Tp. SP. 4B.K K.3 Bro V.