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).
Clarifying that Messrs. Duckham has no authority to state their oils are approved, but their H.B.B. grease is approved.
| Identifier | ExFiles\Box 32\4\ Scan286 | |
| Date | 24th June 1931 | |
| ROY.{Sir Henry Royce} c.Hs.{Lord Ernest Hives - Chair} Y1588 BY/EMA/J.24.6.31. With reference to your note ROY{Sir Henry Royce}/GEA5/EB.22.6.31, will you kindly note that we have not given Messrs. Duckham any authority to state that their oils are approved by us. It should be made clear however that the H.B.B. grease supplied by this firm is approved by us and appears in our Instruction Book and therefore they would be quite in order in stating that this grease is approved, but so far as lubricating oils are concerned no authority has been given so far as we are aware for the statement they have apparently made. BY/EM. (Stamp: RECEIVED 25 JUN 1931) | ||