Steam Locomotive Indicator, Crosby indicator & instruction booklet in wooden case together with indicator line and various wooden scales used for recording steam pressure in cylinders. Crosby steam locomotive indicators
Steam Locomotive Indicators, Crosby indicator in wooden box. Used for measuring steam pressure in cylinders. Marked "Trademark Crosby". 8 3/4"x6 3/4"x4 3/4" Crosby steam locomotive indicator
Steam engine indicator made by Crosby Steam Gage and Valve Company, Boston. Date made about 1895. Recording drum 900mm x 460mm diameter Steam engine indicator made by Crosby Steam Gage and Valve Company