The gentleman's and trader's guide. Containing, the description and use of a new-invented instrument, for preventing frauds by counterfeit gold, ... By W. Bradford, ... R. Darby, and J. Hulls. ...
Bradford, William,teacher of mathematicks.
Darby, R.
Hulls, Jonathan,1699-
Stratford : printed by J. Keating,
1756.
With an initial leaf of patent: 'Abstract of His Majesty's Royal letters patent'.
ESTC