Certificate pursuant to Section 12 of the Weights and Measures Act 1985, certification no 2308 ... the Secretary of State for Trade and Industry hereby certifies as suitable for use for trade a pattern of a spirit measuring instrument : Submitted by: Unicorn Spirit Measures Ltd.
Great Britain.Department of Trade and Industry.
National Weights and Measures Laboratory.
Unicorn Spirit Measures Ltd.
Teddington : National Weights and Measures Laboratory,
1994.
Reference no. STD 6973.