Digby Antiques (Wiltshire) has dated this piece to the 1960s.
Hallmarked for Birmingham 1966 makers mark George Tarratt Ltd.
From research I think these were designed by Ernest Blyth.
Super condition.
Each part of the cufflinks are marked, back middle and front.
L 2.2 cm
W 1.5 cm
Digby Antiques (Wiltshire) has dated this piece to the 1960s.
You can view the stock and full dealer information on the Digby Antiques (Wiltshire) Profile Page