Watch List notes:

GREAT BRITAIN. Duo of Crown-Sized Die Trials (2 Pieces), ND (1957). London Mint. Elizabeth II. Both PCGS Certified.

1) PCGS Genuine--Rim Damage, EF Details. Silver.

2) PCGS Genuine--Environmental Damage, AU Details. Bronze.

Found in the remains of the old Royal Mint building in London after demolition by metal detectorists, these pieces were crimped at the edges to cancel them; explaining the somewhat poor condition of these trials. RARE.

Estimate: $200 - $400