Never used black and white enamel cufflinks

Well-groomed double sided cufflinks featuring oval gold metal faces filled with black and white enamel in an eye-catching diagonal stripe design.  The ovals measure 21 mm x 10 mm and connect with a 5 link chain.

These are New Old Stock so were manufactured some time ago but have never been used. Although the vintage is unknown, the design suggests they date from the 1960s/70s.