Thornton and Co
of 4 Hanover Street, Edinburgh.
1848 Company established.
1897 The company was registered on 8 July, to take over the business of india-rubber and waterproof manufacturers of the firm of the same name. 
1914 India rubber manufacturers. 
1937 India rubber manufacturers. 
Sources of Information
- The Stock Exchange Year Book 1908
- 1914 Whitakers Red Book
- 1937 The Aeroplane Directory of the Aviation and Allied Industries