Tags: Horse Race, Race.
The guinea is a coin that was minted in the Kingdom of England and later in the Kingdom of Great Britain and the United Kingdom between 1663 and 1814. It was the first English machine-struck gold coin originally worth one pound sterling equal to twenty shillings; but rises in the price of gold relative to silver caused the value of the guinea to increase at times to as high as thirty shillings; from 1717 until 1816 its value was officially fixed at twenty-one shillings.