Mexican 25 Pesos 1968 Olympic Commemorative Silver Coin in Pendant Bezel

This item is a circular silver coin, specifically a Mexican 25 Pesos piece minted in 1968 to commemorate the Olympic Games in Mexico City. The coin features the national coat of arms of Mexico—an eagle perched on a cactus with a snake in its beak—on the side shown. It is housed in a circular metal pendant bezel with a visible jump ring at the bottom, suggesting its use as jewelry. The coin is composed of 0.720 fine silver (rather than pure 1 ounce silver, though its gross weight is substantial). The physical condition shows significant environmental oxidation and heavy dark grey to yellowish-brown toning across the relief. There is noticeable surface grime and moderate high-point wear, characteristic of a piece handled as jewelry. The bezel appears to be a basic four-prong tension mount. While the commemorative design was mass-produced, the addition of the bezel and the specific tarnish pattern give it a unique, aged aesthetic. The craftsmanship of the host coin is high-relief minting typical of 20th-century Mexican legal tender commemoratives.