Treasury certificate that Newton has taken an oath not to reveal the new method of rounding and edging coin

<62r>

I doe hereby Certifie that Isaac Newton Esqr Warden of his Majestys Mint did on the 2d of May 1696 Take his Corporall Oath before the Right Honourable the Lords Commissioners of his Majesty's Treasury not to Reveal or Discover (directly or indirectly) to any Person or Persons whatsoever the new Invention of Rounding the Mony + making the Edges of it with Letters or Grainings or either of them.

Wm: Lowndes.