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 counter machine connected to an electronic point of sale terminal ... : submitted by Herbert and Sons Ltd.
Great Britain.Department of Trade and Industry.
Herbert and Sons Ltd.
National Weights and Measures Laboratory.
Teddington : National Weights and Measures Laboratory,
1991.
Reference no STD 5431
Weighing-machines