First a 1000 Peso, 1988, aluminum bronze coin, weighing 15.07 grams, Ø 30.5 mm. About 26% off center. Gary in Washington
Below is a nice sample, (click to zoom in on obv.) of a lamination error. The planchet lost a small piece before it was struck. The alloy is copper nickel. any more error coins from the great mint in Mexico??? Lets see them. Gary in Washington