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

<62r>

I doe hereby Certie {sic} that Isaac Newton Esqr Warden of his Mats Mint did on ye 2d of May 1696 Take his Corporall Oath before ye Rt Honble the Lords Commrs of his Mats Treary not to Reveal or Discover (directly or jndirectly) to any Person or Persons wtsoever the new Invention of Rounding ye Mony + making the Edges of it wth Letters or Grainings or either of them.

Wm: Lowndes.