This appears to be a vintage Mexican alpaca metal cuff bracelet featuring a detailed abalone shell and mother-of-pearl floral mosaic inlay.
When it comes to Mexican costume and artisan jewelry, a simple "MEXICO" or "HECHO EN MEXICO" stamp without a numerical purity mark (like .925) typically indicates that the base metal is Alpaca silver. Alpaca is a durable copper-nickel-zinc alloy known for its affordability and brilliant silvery appearance.
When it comes to Mexican costume and artisan jewelry, a simple "MEXICO" or "HECHO EN MEXICO" stamp without a numerical purity mark (like .925) typically indicates that the base metal is Alpaca silver. Alpaca is a durable copper-nickel-zinc alloy known for its affordability and brilliant silvery appearance.
What This Stamp Tells Us About Your Bracelet:
Production Era: This minimalist style of incised lettering was common on artisan pieces from the mid-to-late 20th century. It predates the introduction of the modern letter-and-number registration system (e.g., "TA-16") that Mexico mandated for sterling silver workshops starting around 1979–1980.
Material Expectations: Because it lacks a ".925" stamp, the metal framework will likely age with a warm, brassy, or golden-brown patina rather than a dark silver tarnish. This exactly matches the visible aging pattern on the back of your cuff.
Artisan Context: Pieces like this were handcrafted by independent workshops in prominent jewelry hubs like Taxco, Guadalajara, and Mexico City to be sold as popular everyday accessories or tourist keepsakes
Base Value Range: Similar floral mosaic pieces stamped "MEXICO" or "ALPACA MEXICO" generally retail on platforms like Etsy and eBay for around $25 to $35 in standard used condition. Exceptional, fully unpolished pieces with zero shell damage can occasionally fetch up to $45