Hello
The piece is an 8 reales of Fernando VII made in Zacatecas, the date could be 1811, 1812 or 1813
Anv: FERDIN VII 8 R (BUST) DEI GRATIA 181X
Rev: MONEDA PROVISIONAL DE ZACATECAS (provisional currency of zacatecas)
They didn?t know how the new king looked like so they made several designs of coins with the imaginary face of Fernando VII.
saludos