Vintage ying yang enameled cuff slave bracelet with attached adjustable ring. This was from my vintage shop that closed in the early 1990's.
It still has the remnants of a price tag on the back.
The back is signed Alpaca and Mexico. Alpaca is a formulation of nickel silver (a type of copper alloy containing nickel and zinc) . It does polish. I only did a quick polish on this piece. Great shape!