Certificate pursuant to section 12 of the Weights and Measures Act 1985 ... the Secretary of State [for Trade and Industry] hereby certifies as suitable for use for trade the following pattern of a weight/price labeller ... : submitted by Portals Engineering Ltd.
Great Britain.Department of Trade and Industry.
National Weights and Measures Laboratory.
Portals Engineering Ltd.
Teddington : National Weights and Measures Laboratory,
1989.
Weighing-machines
Weights and measures