From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Testimonial letter regarding the experience of using Duckham's oils in various vehicles and engines since 1904.
| Identifier | ExFiles\Box 145\3\ scan0119 | |
| Date | 6th November 1936 | |
| COPY. PMS/OJN. A.{Mr Adams} F.{Mr Friese} Sidgreaves Esq., Messrs. Bentley Motors (1931) Ltd., 16, Conduit Street, W.1. Dear Mr. Sidgreaves, My old friend Alec Duckham has asked me to write you a word with regard to my experience of his oils, and I so do with pleasure. Your Service and Technical people know that I have never used any other oil in my Rolls Royce and Bentley cars from the old days when I first purchased these. However, my experience of Duckham's oil goes back even beyond this time to thirty years ago when I was running MERCEDES and afterwards NAPIER cars. It may interest you to hear the story of the occasion when I first decided to adopt Duckham's oils. It was right back in 1904 when the London Brick Company was running at its largest works two of the National Gas Engines Company's big Z.E.2., type of suction gas engine, Old Mr. Bickerton, the Chairman, said I was the first manufacturer to run these successfully day and night on coke. We were having considerable | ||