A treatise on diamonds and pearls : in which their importance is considered : and plain rules are exhibited for ascertaining the value of both; and the true method of manufacturing diamonds (1751)
Jeffries, David · London : Printed by C. and J. Ackers in St. John's street, for the author · leaf 9
Beg. leave, with the ® profoundeft humility, B dedicate the fol- lov/ing treatife to your Majeftyy the patron of truth A 2 and
