BROWN, A. G.
The Indicator and Its Practical Working; With a Description of the TABOR INDICATOR.
Paper read before the Sheffield Society of Engineers, Sheffield, March 15th, 1890.
Description:
pp. (ii), 39, (i). 25 text illustrations, 1 folding plate. New cloth, a very good copy.
The Atlantic Printing and Publishing Company. Broadheath.