From German and French production: vintage cufflinks with glass crystals from the 1950s to 1980s. We were able to secure a bundle from remaining stock. Unless otherwise indicated, the cufflinks are made of gold doublé: a robust and permanent gold plating, also known as rolled gold. The term "doublé" (English: rolled gold, French: or laminé) is a quality feature and has been protected in Germany since 1923. According to DIN 8237, the fineness of the overlay may not be specified. This would be in contradiction to the Stamp Act. And who could contradict this? The beautiful shining glass crystals that are used here shimmer depending on the incidence of light and vary slightly (and downright exciting) in color. An eye catcher.