The ready calculator: or, tradesman's sure guide, in computing the price or amount of any quantity of goods or merchandizes. Containing, I. A correct large table of the value of any quantity of goods, ... XV. A catalogue of useful memorandums in business. The third edition, corrected. By S. Thomas, ...
Slack, Thomas,1719?-1784.
London : printed for G. Robinson and T. Slack in Newcastle,
1777.
First published as 'Britannicus estimator', London, 1764.
S. Thomas = Thomas Slack.
ESTC