3. c. 26) was an Act of the Parliament of England which made it high treason to make or possess equipment useful for counterfeiting coins.

It was also treason to knowingly buy, hide or conceal, or have possession of such items "without lawful Authority or sufficient Excuse for that Purpose."

Section 5 provided for the destruction of coin-producing machinery found in the possession of anyone not an employee of the Royal Mint.

Section 6 made it a felony to take counterfeit money, or to mix copper with silver.

This time limit was later amended to six months for offences under sections 1 and 3 (by the Assay of Plate Act 1702 (1 Ann.