Russia
Nicholas I platinum 3 Roubles 1831-CПБ MS61 NGC, St. Petersburg mint, KM-C177, Fr-160, Bitkin-77. Obv. Crowned imperial double eagle, holding scepter and orb; crown above. Rev. Denomination and date in four lines. Exceedingly lustrous, with an attractive, light prooflike appearance and only some minor hairlines in the fields of the reverse. A pleasing and scarce piece.
Estimate: 2500-3500 USD