International letter with perfin "A.R.R." in the stamp. The letter is franked correctly with 20 øre, which was the rate [...]

International letter with perfin "K" in the stamps. The letter is franked correctly with 4 x 10 øre = 40 [...]

International registered letter with perfin "K" in the stamps. The letter is franked correctly with 20 + 5 + 10 [...]

Domestic letter with perfin "V.Ø." in the stamp. The letter is franked correctly as printed matter with 4 øre, which [...]