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1 Onza Pattern, Troy, Giro de moneda
| Issuer | Casa de Moneda de México |
|---|---|
| Year | 1947 |
| Type | Log in to see details |
| Value | Log in to see details |
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| Composition | Silver (.925) |
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| Diameter | Log in to see details |
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| Obverse description | Log in to see details |
|---|---|
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| Obverse lettering | Log in to see details |
| Reverse description | Central device depicts a finely rendered assay balance scale with two suspended pans and chain links, symbolizing precision measurement of silver content. Flanking inscriptions in the field read 'PESO 33.625 GRAMOS' and 'LEY 0.925', confirming the coin's weight and fineness. The circular legend 'UNA ONZA TROY = 480 GRANOS DE PLATA PURA' runs along the periphery. A small five-pointed star appears at the base of the design, and a toothed inner border frames the entire reverse. |
| Reverse script | Latin |
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| Additional information |
The 1947 onza pattern was produced by the Casa de Moneda as part of an internal push to establish a standardized silver bullion piece at a time when Mexico's silver mining output was among the highest in the world. It never advanced to regular issue — the project stalled, likely due to competing priorities around the peso's silver content, which was being actively debated through the late 1940s as global silver prices climbed.
KM#Pn196 is known in extremely limited numbers, with most examples traceable to institutional or ministerial holdings rather than open-market circulation.