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).
Letter to Wellworthy Piston Rings Ltd regarding a piston patent and A.C.9 bearing material data.
| Identifier | ExFiles\Box 115\5\ scan0262 | |
| Date | 26th April 1939 | |
| 1020a Rm{William Robotham - Chief Engineer}7/R.{Sir Henry Royce} 26th April, 1939. J.{Mr Johnson W.M.} Howlett, Esq., Wellworthy Piston Rings Limited, LYMINGTON, Hants: Dear Howlett, Thank you for your letter of April 25th re- garding the piston. If Blackith can manage to get up here, I should be only too glad to collaborate with him in getting the final patent through. I am getting together the data on the A.C.9 bearing material, and will send it along. Yours sincerely, | ||