Antique Deco Bracelet / 1910s-20s

Love this antique bracelet c.early 1900 and perfect for stacking with Victorian or Deco era bracelets.  Black glass insets with ornate engraved silk base, stamped with "Diamonbar" on the clasp tab. I can not find a sterling mark, appears to be silver plated piece with some coating loss.

condition: great, tarnishing or plating loss to the metal but overall wonderful piece with ornate detail.

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measurements:
interior opening 2.5" x 2"
width 12mm