The Mexican coat of arms with its legend at the centre, surrounded by all the previous Mexico's coat of arms; from the native one at centre top and then in chronological order clockwise
Lettering: ESTADOS UNIDOS MEXICANOS
Translation: United Mexican States
Winged victory on a crowned pedestal, with the mountains and Mexico City in the background, with the weight at the top-left, metal at top-centre, date, mint, and fineness at top-right.
Lettering:
1 ONZA PLATA PURA [YEAR] LEY .999
Mo
Translation:
1 Ounce Pure Silver [YEAR] .999
Mo