Russia, Nicholas I (1825-1855) 1831-SP 6 Roubles Platinum, VF35 PCGS
Fr. 159, C-178. Obverse: Triple crowned Imperial eagle; Reverse: Date and value in circle, legend surrounds. Although notably circulated, still a very nice example with problem free rims. In 1831, 6 rouble production was a mere 2,784 coins. A scarce and extremely popular type.