Un Peso (72%) melt value & silver content
1920–1945 · 72% silver · 0.38570 troy oz of pure silver per coin.
What an Un Peso (72%) is worth
The melt value of an Un Peso (72%) is its 0.38570 troy oz of pure silver multiplied by the silver spot price. It contains 72% silver, and at a face value of $1.00 that works out to 0.3857 troy oz of silver for every peso of face value. The calculator above uses the current spot price, so the figure it shows is what the silver in the coin is worth right now.
Melt value is a floor, not a price. An Un Peso (72%) in collectible grade, or a scarce date, can be worth well above its silver. Dealers also buy under melt and sell over it — the spread is how they make money, so expect to pay a premium buying and receive a discount selling.
What an Un Peso (72%) works out to
| Quantity | Silver | Melt value |
|---|---|---|
| One coin | 0.38570 oz | — |
| A troy ounce of silver | 2.6 coins | — |
| $1.00 of face value | 1 coins | — |
Melt value updates with the spot price above.
Silver standards in Mexico
Mexican silver fineness stepped down repeatedly through the twentieth century, from 90% and 72% issues down to 50%, 30% and finally 10%, before silver left circulating coinage.
Denomination tells you very little here. The same peso face value spans 72% and 10% silver depending on the years, so the date does all the work.
Other 1 peso
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