Vintage Ring 925 Sterling Silver JS Wide Chunky Heavy Wrap Biker String Ring

Artisan made super wide chunky ring signed JS 925 with a registeredmark and it appears to have some other symbols inside that I cannot make out. Possibly Southwest and possibly made in Mexico. It is a string ring type of a rap that is smooth on the inside. It's quite long so it appears that it would fit a 5 and a half since that is the smallest size as per the ring sizer. Cannot guarantee that this will fit your finger but you can take it and have it sized. Is Sterling silver artisan made See photos for condition and size