This vintage piece is likely hallmarked with a maker's mark and for sterling silver but time and wear have worn away the provenance.  The substantial and detailed cuff bracelet is enhanced with three bands of braided silver.  There is a heft to this cuff, it is not a delicate piece--but it rests nicely on the wrist.

Measures 6 1/4" outside, 5 1/2" inside, 1" opening.  In well loved vintage condition.