International letter with perfin "GP" in the stamp. The letter is franked correctly as printed matter with 30 øre, which [...]

G29 A/S H. A. Gruberts Sønner.
Morten Mikkelsen2020-02-10T19:08:58+01:00Domestic letter with perfin "G.S." in the stamp. The letter is franked correctly as comercial documents with 15 øre, which [...]
G30 M. J. Grønbech & sønner
Morten Mikkelsen2020-02-10T19:28:01+01:00Domestic letter with perfin "G.S." in the stamp. The letter is franked correctly with 20 øre, which was the rate [...]

G30 M. J. Grønbech & sønner
Morten Mikkelsen2020-02-10T19:40:46+01:00Domestic registered letter with perfin "G.S." in the stamp. I'm still working to clarify the franking. The stamp is cancelled [...]