B64-487. STEAM ENGINE INDICATOR. "The Tabor." Manufactured by Ashcroft Mfg. Co, Bridgeport, CT. Patented instrument used to graphically record the pressure versus piston displacement through an engine stroke cycle. Engineers use this information to check design and performance of the engine. Fully nickel plated, with solenoid operated stylus, 9? x 10? x 8? finger-joined walnut box with second compartment inside lid that includes an operating manual from the Delaware, Lackawanna & Western Railroad. Includes a wide variety of original hardware; don't ask us if it's all there but it looks impressive. Condition: Fine, Estimate: 100-200