BHS CollectionFour handwritten pages. Copy of correspondence from Thompsons (Castlemaine) Limited to Mr McCann, Manager, North Deborah Mine, Bendigo re the setting of the valves in the Roberts Winding Engine. As they have not got any records of the design of the machine, they suggest dismantling part of the machine so that a reasonable setting can be determined and a chart made to which the fitters will have to adjust the Valves.document, gold, the north deborah gold mine co, north deborah mine, letter from thompsons (castlemaine) ltd, mr mccann, john g burnell, roberts steam winding engine, north deborah mining company no liability, mr j g browne, j j stanistreet