1811 Coin ID

[crhstreetwalker]

Bought this today, not sure exactly what it is. I tried comparing to other coins of the same design, but I couldn't match it up with anything. It shares the same design as a mexican real, but a few details are off and it's not the exact same thing. It is for sure a silver planchet, could it be a counterfeit made back in the day? It has a die rotation of about 30 degrees and is the size of a silver dollar. Thank you.

 

[Mackaydon]

It appears to be a cast replica.
The 'coin' is Mexico--War of Independence--Royalist issue; 39 mm 27.07 grams.
Obverse reads: FERNIN VII 8 R DEI GRATIA 1811
Reverse reads: MONEDA PROVISIONAL DE ZACATECAS
Don.....