The Silver is purely fine beyond pieces of Eight.

For if any suspect the goodness of the Plate, it is the Custom to burn the Money in the fire red hot, and so put it in water: and if it be not then purely white, it is not Currant Money.
The third sort of Money is the King's proper Coin.

For none upon pain of Death may Coin it.

It is called a Ponnam.

It is as small as a Spangle: Seventy five make a piece of Eight, or a Spanish Dollar.