Sweden. Facit 29a1, 31d cover, 4+6 öre on privately manufactured postcard, sent from STOCKHOLM C 12.2.1880 to Germany. Transit PKXP No 2 13.2.1880 and arrival pmk D 15.2. Very early usage of a privately manufactured pc abroad, before such usage became allowed in accordance with UPU. Scarce combination, R4 for Germany according to Ferdén. Signed O.P.