China
People's Republic silver Four-Piece "Yellow River Culture" Proof 10 Yuan Set 1995 Choice Cameo Proof, KM-PS57 comprised of KM840-843. Each example displays light toning at the rims and remains enclosed in its original plastic and box, each with an accompanying COA. Scarcer than the mintage of 5,000 sets suggests.
Estimate: 600-700 USD