A brief and easie way by tables to cast up silver to the standerd of XI ounces ij penny-weight, and gold to the standerd of XXII carrots : with questions wrought by the golden-rule, also by decimall tables - Reynolds, John of the Mynt in the Tower (Printed by Thomas Favvcet, 1651)
Page 68 has imprint date 1652 and is signed and dated 1653 by John Reynolds. - Reproduction of original in British Library. - Wing, R1315