Power of attorney with perfin “K.H.” in the stamps. The document is franked correctly with 4 x 25 øre = 100 øre, which was the rate for power of attorney from March 1st 1921 to ca. 1968. The stamp is cancelled June 1st 1951 with København 30 Nr. 9 , København 30.3 Bro Vc. The perforation of this “4 – stribe” of stamps indicate that the perforator was with at least 4 matrices, there are exactly the same distance af placement in the 4 stamps.