Catalogue Entry: MINT00622
Report (as ordered by the Treasury) on various methods of ascertaining the purity of copper, and the deficiencies of most methods
Contents
The hammer test is the only reliable one. Affirms the superiority of hammered over cast coin, despite its greater cost. Bertie offers to undertake the production of hammered coin 'at the rate I formerly proposed to your Lordship'.
On reverse: Treasury note to refer the proposal to the Mint, dated 26 April 1714.
Related Material
[See Craig, NATM, 97-8.]
