MEXICO. Mint Error -- Struck on Copper-Nickel and Steel Planchet -- 20 Pesos, 2016-Mo. Mexico City Mint. PCGS MS-66 Gold Shield.
16.60 gms. KM-Unlisted. A type that is normally a brass ring with a copper-nickel center, this error features a center of brass with two rings--an inner ring of copper-nickel and an outer ring of brass. VERY RARE and interesting.
Estimate: $75.00- $150.00