Blue Glass Triangle Vintage Cufflinks, Geometric Cuff Links

Rounded triangle geometric cufflink design with glass fronts.

Size: 5/8" in size.
Type: Pre Owned Mid Century Vintage from the 1960's.
Condition: Good vintage condition with good working lever backs. No chips or cracks in the glass cabs.
Materials: Silver tone plated metal, glass.
Markings: Marked Pat Pend on the the levers but no maker's marks found.