The gentleman and traders guide
Subtitle: containing a description and use of the newest invented instrument, ever made publick, for preventing frauds by counterfeit gold ... the instrument is neatly made in brass, and very easily portable for the pocket
Series: Goldsmiths'-Kress library of economic literature -- no. 10662; Making of the Modern World
Publisher: Printed by S. Creswell
Published: 1770
Place of publication: Nottingham
Language: eng
Subjects: Gold; Assaying; Instruments; Assaying apparatus; Counterfeits and counterfeiting
Notes: Dated about 1770 by Goldsmiths' Library.

By W. Bradford, R. Darby and J. Hulls, according to Goldsmiths' Library.

Goldsmiths'-Kress no. 10662.