Great Britain - Groat n.d (1638/9-1642), Silver, CHARLES I 1625–1649 Aberystwyth mint. Bust to left, plume and value on both sides. Rev. oval quartered arms, plume above. Mm. book.S. 2892.In 1637 the mint at Aberystwyth was set up to support the Tower mint. It used locally mined silver from Wales while using modified dies from the Tower mint.1.84 g Very fine