Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,767 pages of information and 247,156 images on early companies, their products and the people who designed and built them.
Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.
Hotel slot-meter
1938 Various pre-payment meters of the Siemens-Schuckert type were approved by the Electricity Commissioners[1]
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MW1.43