Prepaid letter from Copenhagen General-Post-Amt 8 April 1777 to Christiansand, Norway. On back with red wax-seal GENERAL POST AMTS SIEGEL, letter is about pension to Fräulein Cathrine Dorothea von Dumbsdorff zu Christiansand. List no. on back 30-11, paid 11 sk. for the postage. Letters to Norway as early as this is very unusual. Although sent from an Official administration, not sent as Royal Service KT, since the addressee is a private person.