Mexico
Estados Unidos silver Mint Error Proof Pattern 100000 Pesos 1990-Mo PR66 Cameo PCGS, Mexico City mint, KM-Pn245var (in silver rather than bronze). Triple struck, with all strikings off-center. Stellar and glass-like, with a pairing of two obverse and one reverse strike on the obverse, and the inverse visible on the opposite face.
HID02901242017
Estimate: 250-350 USD