1695 W. Lowndes 11 A Guinea should be established at Four and Twenty Shillings, which, if Coined into Quarter-Guinea's, would be very useful in way of Trade.
1777 140 Quarter guineas more deficient in weight than..1 dwt. 8 grs.
1803 Hatchett in (Royal Soc.) 93 137 George I. a quarter-guinea.
1990 50 792 The attempt to introduce a quarter-guinea coin..failed in 1718.