Russia
Catherine II Polupoltinnik (1/4 Rouble) 1775 ММД-CA, Red mint, Bitkin-149, Diakov-326, MS64 NGC. Sharply struck, with bright, original mint luster and no significant imperfections. The finest of only two Mint State pieces certified by NGC and PCGS combined. Very rare.
Estimate: 4000-5000 USD