Certificate pursuant to section 12 of the Weights and Measures Act 1963 ... the Secretary of State [for Trade and Industry] hereby certifies for use for trade the following pattern of self indicating and price computing counter machines ... submitted by: W & T Avery Ltd
Great Britain.Department of Trade and Industry.
National Weights and Measures Laboratory.
W & T Avery Ltd.
London National Weights and Measures Laboratory
1986
Weighing-machines