8" This sterling silver rolo chain bracelet features a secure bolt ring clasp and robust rounded links- stamped SIS
The stamp you see is "SIS", which is a maker's mark used to identify the specific manufacturer or silversmith who created the bracelet.
Understanding the Markings
SIS (Maker's Mark): This functions as the designer's or manufacturer's signature. When stamped alone on this type of heavy Turkish or Italian-style rolo link chain, it typically indicates a specific registered jewelry manufacturer or distributor.
Purity expectation: This style of heavy, bright-finish rolo link jewelry is almost always crafted from 925 Sterling Silver. Look closer around the clasp mechanism, on the small metal loops (jump rings), or on the flat ends of the decorative barrels for a separate "925" or "Sterling" purity stamp
The resale value of your bracelet is estimated between $40 and $150 USD on the pre-owned jewelry market. Because it is marked with a standard manufacturer hallmark ("SIS") rather than a premium designer label, the price depends mainly on its weight in sterling silver and standard secondary market demand