Parcel letter with perfin "D.G.C." in the stamp. The letter isn't franked correctly with 50 øre, 40 øre was the [...]

Parcel letter with perfin "E.J./F." in the stamps. The letter is franked correctly with 1 + 1 + 1 kr [...]

Parcel letter with perfin "ESAB" in the stamp. The letter is franked correctly with 16 + 16 +1 kr = [...]

International parcel letter with perfin "E.V." in the stamp. The parcel letter is not franked correctly with 10 kr, until [...]