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. By David Jeffries, jeweller.
Jeffries, David.
London : printed by C. and J. Ackers, for the author,
1750.
With a list of subscribers.
ESTC
Also reproduced on microfilm. Woodbridge, CT: Research Publications, Inc., 1986. The Eighteenth Century ; reel 4124, no. 08.