Soviet Union 1925 (February 28), 7k-40k, imperforate Lenin Mausoleum set together with typo printing definitives of 1k (3) and 2k vertical pair, perforation 14 1/2×15, plus Lenin Mourning stamp of 3k, used on registered cover from Rostov-on-Don to Riga, arrival”5.3.25” ds on reverse, vertical fold did not affect the stamps, fine and an interesting cover We guarantee authenticity with no time limit of all lots posted for sale. Thank You for Visiting Our Store!