Russia
R.S.F.S.R. silver Proof Rouble 1921 AГ PR66 Cameo NGC, Leningrad mint, KM-Y84. Obv. National arms. Rev. "1" in star with date below. An exemplary example of this popular first-year issue. The strike is flawless, and the surfaces essentially mark-free, with light russet patina and frosted devices. A dazzling example of the type, with none certified finer by NGC and only one other piece certified Proof 67.
Estimate: 12000-15000 USD