“Reeb Italy” on a bracelet is a maker’s mark from a vintage Italian jewelry brand or manufacturer known as REEB.

These pieces are typically sterling silver (often stamped with 925 alongside Italy and REEB), indicating 92.5% pure silver made in Italy. REEB produced a variety of sterling silver jewelry in the mid-to-late 20th century, including:

•  Bracelets (cuffs, bangles, omega-style flex cuffs, twisted designs, leather bands, and link chains)