Certificate pursuant to Section 12 of the Weights and Measures Act 1985, certification no 2325 ... the Secretary of State for Trade and Industry hereby certifies as suitable for use for trade a pattern of a cubic measure : Submitted by: Conway Engineering Co. Ltd.
Great Britain.Department of Trade and Industry.
National Weights and Measures Laboratory.
Conway Engineering Co. Ltd.
Teddington : National Weights and Measures Laboratory,
1994.
Reference no. STD 7416.