1986 vintage set, mirror stamp

The vintage set, minted with a mirror stamp in an edition of only 5,000 pieces in the 1990s. Special stamps were made for the coins, often differing in fine nuances from circulating coins, and the coins were struck with a mirror stamp. Complete sets are increasingly rare, especially in neat boxes (as in this case), as many have been decommissioned, others have gone to grading.