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 self-indicating and price-computing non-automatic weighing machine : submitted by Berkel Ltd.
Great Britain.Department of Trade and Industry.
National Weights and Measures Laboratory.
Berkel Limited.
Teddington : National Weights and Measures Laboratory,
1991.
Reference no. STD 4239
Certification no 1896/18 and 1896/19
Weighing-machines