Russia
U.S.S.R. silver Proof 50 Kopecks 1924-ПЛ PR67 NGC, Leningrad mint, KM-Y89.1. National arms, dividing CC-CP, with all in circle. Rev. Worker at anvil, with date below. An extremely rare Proof issue, with spectacular original toning in shades of gold, argent-gray, blue, and red-violet. The fields are fully mirrored beneath the toning, with bold strike and surface free of significant flaws. This is the single finest example certified by NGC.
Estimate: 10000-12000 USD