Half guinea

Half guinea of king William III, 1695.
Half guinea of king George I, 1717.
Half guinea of king George II, 1746.
Half guinea of king George III, 1797.

The half guinea gold coin of the Kingdom of England and later of Great Britain was first produced in 1669, some years after the Guinea entered circulation. It was officially eliminated in the Great Recoinage of 1816, although, like the guinea, it was used in quoting prices until decimalisation.