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file U (Stack)Master Rule Makers of London
Directions for Using the Engineers' Sliding Rule; with a Description of the Several Lines upon it, and Directions how to find any Number thereon; together with The Application of these Lines to Multiplication, Division, the Rule of Three, etc. etc. ...
London: The Master Rule Makers, of London, n.d. [c.1856]. Printed by W. Penn. Inscribed on the cover "Henry K J Mirk./20'Lyica 1856.r."
[Unknown]
1856?