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of The London India Rubber Works, Hackney Wick, London, E9. T. A.: "Ingrams, Hackwick, London". Telephone: East 1406 (3 lines). (1922)
Ditto Address and Telephone. Cables: "Ingrams, London". (1929)
1847 Company founded.
1916 Private company.
1922 Advert as Manufacturers of Every Description of Surgical And Mechanical India Rubber Goods. (Advert also in French and Spanish). (Chemical Section - Stand No. A.61) 
1929 Advert as Manufacturers of Every Description of Surgical and Mechanical India Rubber Products. (Druggists' Sundries Section - Stand No. M.10)
1929 Advert as Manufacturers of Every Description of India Rubber Sports Goods. (Sports Goods Section - Stand No. C.53) 
1937 India rubber manufacturers. 
1961 Manufacturers of surgical and mechanical rubber goods. 350 employees. 
FROM: The British Journal of Nursing - August 1948. Page 100
THE HOUSE OF J. G. INGRAM AND SON.
"Our readers have become so used to seeing the advertisements of J. G. Ingram and Son in this Journal over a period of many years, that we are sure they will feel some pleasure in knowing that this firm has recently celebrated its centenary. One hundred years ago an engineer named James George Ingram journeyed to London from Scotland and opened a small workshop in Hoxton for the manufacture of toy balloons. Here, his experiments in rubber were the beginning of a concern that was to grow and spread rapidly. The factory is now 3½ acres in extent, has representatives in all the principal countries, and a world-wide reputation for surgical, mechanical and sports rubber goods of the finest quality.
It is interesting to note that many of the workers have been with the firm thirty, forty, fifty years and even longer.
Ingrams have introduced several special features into the manufacture of hot-water bottles, including the famous reversible washer which is really two washers in one bottle, and the equally famous hand-made seams, which Ingrams use on one type of hot-water bottle as a safeguard against bursting. These are more recent ideas. But twenty, or even thirty, years ago, Ingrams were producing hot-water bottles incorporating new features, for example the Eclipse bottle with the ‘patent neck fitting ’- the brass socket embedded in the rubber neck.
Ingram’s teats are also world-famous and new ideas in teat manufacture are always being examined, though no one has yet improved upon the Agrippa patent band teat, with its extraordinary transparency and the gripping power provided by the patent interior band.'
Much more could be written of the fine work accomplished by this firm for the benefit of the community, but space forbids."