Mark: None I can't decide if this vintage or not - maybe relatively modern Pewter coloured mount set with huge open back unfoiled glass stones as photo - with rollover clasp pin Approx 9x2.5cm Condition: Excellent but does need cleaning Condition Ratings *** Source: Price Guide to Costume Jewelry, Third Edition by Harrice Simons Miller. Mint: New, never worn. Near Mint: No apparent wear. Excellent: No chipping or fading of finish or enamel; no missing, yellowed, or darkened rhinestones; no worn prongs or edges. If stones have been replaced, it should not be obvious. Very Good: No missing or dead stones, no peeling pearls, minor chips in the enamel or slight wear on the prongs or edges.