MEXICO. Mint Error -- Partial Reverse Brockage -- 20 Pesos, 1989-Mo. Mexico City Mint. ANACS MS-63.
KM-508. Very dazzling and dramatic, this issue exhibits a deep, partial brockage upon the reverse, with very little of the obverse design discernable, and with a slight degree of the reverse wreath left unaffected.
Estimate: $150 - $300