Sweden. Facit 30b cover, 5 öre on printed matter sent from STOCKHOLM NORR 29.6.1880 to Russia. Arrival pmk's and a handwritten label at back. The content is an invitation to General Axel Gadolin, member of the The Acadamy of Sciences in St. Petersburg, for an exhibition on the North-East Passage conquered for the first time by the Swedish Polar Explorer Adolf Erik Nordenskiöld with his steamship "Vega". The stamp with small imperfections. Very interesting historical document. The EARLIEST correctly prepaid pm to Russia acording to Ferdén, in which work the item is also depicted. Ex. Göta 1985.