antique vintage sterling silver hinged bangle bracelet w/ safety chain clasp, amethyst rhinestones

Early 1900s vintage marked sterling bangle bracelet with safety chain clasp, set all around with amethyst colored glass stones. This has a maker's mark on the clasp which is very difficult to make out (starts with a D, ends with R, I think?).

It's slightly tarnished, but otherwise looks good, just one tiny dent / bend, all stones complete. The size is pretty small, about 2 1/2" across the oval length of the opening.