Steam Locomotive Indicator, McInnes-Dobbie Indicator in wooden case. Case labelled " Dobbie McInnes & Clyde Ltd Marine & Mechanical Instrument Makers To the British Admiralty Glasgow". Used for recording steam pressure in cylinders. Dobbie McInnes steam locomotive indicator
Steam Locomotive Indicators, two Crosby Indicators in wooden case marked: "Crosby Steam Gage & Valve Co. Boston Pat'd Sept.2 1829". Used for measuring steam pressure in cylinders. Two steam locomotive indicators
Steam Locomotive Indicators, two Crosby indicators in wooden case. Used for recording steam pressure in cylinders. 13 1/4"x9 3/4"x5". Two Crosby steam locomotive indicators
Steam Locomotive Indicators, two Crosby indicators in wooden case together with various fitments and a bottle of ink. Used for recording steam pressure in cylinders. Two Crosby steam locomotive indicators
Steam indicator in wooden box, with accessories. manufactured by Dobbie McInnes Ltd Steam indicator by Dobbie McInnes Ltd
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
