This set of photos is from a leather bound album bearing the inscription "HUME RESERVOIR AUSTRALIA" plus 'The Rt. Hon. L. C. M. S. Amery, P. C., M .P.' all inscribed in gold. It was presented to The Rt. Hon. L. C. M. S. Amery, P. C., M. P, Secretary of State for Dominion Affairs on the occasion of his visit to the Hume Reservoir on 2nd November 1927.
This album is of local and national significance as it documents the planning and development of the Hume Reservoir up to 1927. It was the largest water reservoir in the British Empire. The album records the pioneering engineering work that went into its construction.
DEPARTMENT OF PUBLIC WORKS, N.S.W. RIVER MURRAY WATERS SCHEME. HUME RESERVOIR.
34. Needle Valves. Some of the needle valves in parts stacked ready for removal by the cableway to their positions on the outlets. There are seven of these, 7 feet 6 inches in diameter. The heaviest single part weighs about 10 tons. New South Wales. August 1927.
A needle valve is a type of valve which can be used to regulate flow of a substance, usually either gas or water, through an appliance or system. The unique feature of the value is the inclusion of a small plunger, with a shape akin to a needle.