Milled gold coins are those struck using a mechanical press. Apart from a few early coins struck during the reign of Elizabeth I and the patterns of Cromwell, it wasn't until the introduction of the milled coinage in 1662 that they became widespread with the introduction of the Half Guinea, Guinea, Two and Five Guineas. The quarter guinea appeared in 1718. These were issued intermittently until 1813. They were replaced by the sovereign, halves, and multiples at the recoinage in 1816 and remain to this day.
S3638. George I 1718 quarter guinea. A single year type. Minimal wear to the high points of both sides, with multiple flaws, rust spots and die polishing lines. Considerably better...