Third Guinea, Coin Type from United Kingdom - detailed information

The value of the guinea had fluctuated over the years from twenty to thirty shillings, and back down to twenty one shillings and sixpence by the start of George's reign. A Royal Proclamation of December 1717 fixed the value of the guinea at twenty one shillings. The value of the third guinea was thus fixed at seven shillings.

In the Great Recoinage of 1816, the guinea was replaced as the major unit of currency by the pound and in coinage with a sovereign.