This is a Vintage Mexico Horse Belt Buckle Crushed Turquoise Chip Inlay Western Style It’s marked "Alpaca Mexico" (very faintly). It’s got a curved design There are crushed turquoise inlayed chips It measures 3-3/8" x 2” It’s in great condition, some of the turquoise inlay has chipped off. Alpaca is a type of alloy, sometimes spelled alpacca, indicates a metal that contains copper, zinc, and nickel along with tin. In Mexico, Central America and South America, alpaca silver is frequently used to make jewelry and crafts. It is incredibly durable and malleable, allowing itself to be shaped into detailed pieces while being strong enough to hold its shape. The end products can be beautiful, but people with nickel allergies should avoid wearing alpaca silver jewelry to avoid potential breakouts.