1978-1980 Mexico 1 oz Silver Onza Balance Scale AU/BU

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In the late twentieth century, Mexico produced a remarkable silver coin that celebrates the very tools of the coining trade. Struck in 0.925 fine silver with a total weight of 33.625 grams, this piece contains exactly one troy ounce of pure precious metal. These coins, dated from 1978 to 1980, showcase a brilliant or about-uncirculated finish that highlights the intricate details of their historic imagery. The front of the coin pays tribute to the minting heritage of Mexico, displaying an illustration of an early screw press. This mechanical device is encircled by the inscription naming the national mint, Casa de Moneda de México. This nod to traditional manufacturing techniques connects the modern issue directly to centuries of coin-making history. On the reverse, a finely balanced set of scales serves as the central focal point, symbolizing precision and honest weight. Surrounding this classic emblem of measurement is the Spanish inscription declaring the coin to be one troy ounce of pure silver, or Una Onza Troy de Plata Pura. The design also clearly displays the purity of 0.925 and the specific weight of 33.625 gramos, making it a fascinating study in the art of official weights and measures.