John Tonks and Co of Central Spring and Steel Works, Furnace Hill, Sheffield.
1919 Advert as manufacturers of springs and spring-washers. Of Daisy Steel and Spring Works, Daisy Walk, Sheffield. [1]
1937 Spring manufacturers. [2]
1940 Advert. Springs and spring washers. [3]
1945 Advert. Springs and spring washers. [4]
1960 Advert. Springs and spring washers. [5]
See Also
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Sources of Information
- ↑ Mechanical World Year Book 1919. Published by Emmott and Co of Manchester. Advert p
- ↑ 1937 The Aeroplane Directory of the Aviation and Allied Industries
- ↑ Mechanical World Year Book 1940. Published by Emmott and Co of Manchester. Advert p209
- ↑ Mechanical World Year Book 1945. Published by Emmott and Co of Manchester. Advert p245
- ↑ Mechanical World Year Book 1960. Published by Emmott and Co of Manchester. Advert p130