Domestic parcel letter with perfin "AK" in the stamps. The letter is franked correctly with 3,75 kr, Which was the [...]

Domestic parcel letter with perfin "AK" in the stamps. The letter is franked correctly with 3,75 kr, Which was the [...]
International letter with perfin "A.K." in the stamp. The letter is franked correctly with 20 øre, which was the rate [...]
Domestic sent letter with perfin "A. K.G." in the stamp. The letter is franked correctly with 10 øre, which was [...]
Domestic post card with perfin "A. K.G." in the stamp. The letter is franked correctly with 12 øre, which was [...]