MEXICO. Mint Error -- Off-Metal Strike on Steel Planchet -- 10 Pesos, 2018-Mo. Mexico City Mint. PCGS MS-67.
cf. KM-616. Struck using a steel blank, contrary to the standard bimetallic metal content of circulating 10 Pesos. See a similar 2021 piece we are offering that was errantly manufactured using an iron-zinc planchet slightly larger than that of the present coin.
Estimate: $150 - $300