RUSSIAN COINS. USSR. GOLD octagonal ingot (1924). 4.98 gm. Uniface. Issued for technical purposes (not payment). ПРОБА: / 999 / М.Д. Sp Fig 205. Rare. About uncirculated. Ex 'The Russian Sale', Dmitry Markov Coins & Medals, New York, NY, September 11, 1996
Estimate: $900