Vintage MMA Sterling Vermeil Griffin or Gryphon Cuff Links

Absolutely fabulous vintage MMA ( Museum of Modern Art) gold plated sterling silver griffin cuff links . The winged gryphons or griffins are quite detailed and fierce! They measure 1”. There is a partial strike on the back that is rather hard to see but I have verified these on Worthpoint. Quite wonderful and in great vintage condition. There is a patent number on the fastener.