The Gold Broad – Cromwell’s 20 Shilling Coin - The Gold Broad was only issued in 1656 and was denominated as 20 shillings, marking it as an ancestor of the guinea and sovereign. In 1656 there was no Monarch; Oliver Cromwell was Lord Protector and the parliament was the Second Protectorate.
What is Milled Coinage? - Milled Coinage are Coins that are produced by machine rather than by physically hammering them. All modern coins are milled.