I suspect this Incredible 1960's Vintage piece may have been designed by a well known maker and possibly for a highly desired collection, as it checks several identification boxes. However, I will not label it as such, as I do not know for certain. As a potential buyer, I leave discernment, and or visit to a professional up to you. Unmarked, Silver tone, with stunning Glitzy Prong set, Faceted, Multi color Green, Blue and Aroura Borealis AB Glass Rhinestones. Well working built-in pin Stones set foiled back, and open back Multidimensional Shows age and signs of wear, but in beautiful condition. *Some stones show slight surface scratches that can only be seen up-close Please see photos/video for best description, condition, and measurements. Photos have been enlarged to show detail V8207B0066