International letter to San Francisco, U.S.A. with perfin “K.H.” in the stamps. The letter is franked correctly with 40 + 20 øre = 60 øre, which was the rate for international letters 20 to 40 g from February 1st 1921 to October 31th 1925. The stamp is cancelled April 20th 1922 with a whole letter cancellation machine Tp. SP. 4B. I1 I.1 Bro. III.