Danish KOPI SMYKKER Museums Sterling Silver Cufflinks - KOPI 925S. They were made by Museums Kopi Smykker, the Danish company which specialises in producing true replicas of archaeological finds. This is their description from their website - Early bronze age (1500-800 BC) Double button of Bronze(These are the more expensive sterling silver version) with disc-shaped head decoration with spiral ornamentation. Several types are known from early bronze age dating from the beginning of this period. The quality of workmanship is really excellent. They are fully hallmarked for sterling silver "KOPI 925S". They are in excellent virtually new condition with a new luxury cufflink case