Stack's Bowers & Ponterio
Collector's Choice June 2021 Auction 22-25 Jun 2021
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MEXICO. Mint Error -- Off-Metal Strike on Aluminum-Bronze -- 20 Pesos, 2016-Mo. Mexico City Mint. PCGS MS-66 Gold Shield.
KM-Unlisted (for regular issue). Weight: 15.3 gms. This RARE oddity displays a planchet entirely composed of aluminum-bronze rather than the expected bimetallic structure of a copper-nickel center within a brass ring.
Estimate: $100.00- $200.00
KM-Unlisted (for regular issue). Weight: 15.3 gms. This RARE oddity displays a planchet entirely composed of aluminum-bronze rather than the expected bimetallic structure of a copper-nickel center within a brass ring.
Estimate: $100.00- $200.00