Alternative Name(s): Hand Wheel Control handwheel for operating Inlet Isolation Valve (HT 3860) of the No.4 Pumping Well, located in the South Engine Room. Refer to Annex 1, Inventory of Principal Items of Machinery & Other Plant, in P. Milner (1985), MMBW Pumping Station at Spotswood, Technology Citation No. TC-85/1, February 1985, pp.23-53.
Alternative Name(s): Hand Wheel Control