Certificate pursuant to section 12 of the Weights and Measures Act 1963 ... the Secretary of State for Trade and Industry hereby certifies as suitable for use for trade the pattern of a mains operated, self indicating, non-automatic, price computing counter machine submitted by Espera-Werke GMBH
Great Britain.Department of Trade and Industry.
National Weights and Measures Laboratory.
Espera-Werke GMBH.
Teddington National Weights and Measures Laboratory
1987
Weights and measures
Weighing-machines.