Mint State Mexico silver 8 reales coin from Zacatecas (Zs) mint.
Nicely struck example, impressive in hand with original and colorful mint luster, especially reverse (difficult to capture in the scan).
NGC certified MS 61, Population Census: 4 coins, only 8 higher.
Dunigan Zs14: "Available in all grades through Almost Uncirculated. Uncirculated examples are scarce but appear occasionally."