Watch List notes:

MEXICO. Mint Error -- Double Struck -- 20 Pesos, 2016-Mo. Mexico City Mint. ANACS MS-65.

KM-Unlisted (struck over KM-616). A nice mint error with a two strikes offset from each other, giving a crisp doubling of details. The Mexico City Mint's striking process has proven to be prone to double strikes in recent years, with coin feeders often failing to eject coins from the coining chamber at a frequency far greater than other modern mints. This somewhat sedate example of the double struck type is fully Gem, having never seen circulation that would affect the details of this error.

Estimate: $200 - $300