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 Gleason Works in the USA regarding gear ratio drawings and part numbers.
| Identifier | ExFiles\Box 114\1\ scan0247 | |
| Date | 22th August 1939 | |
| 1015? c. Les.{Ivan A. Leslie} Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}7/MH.{M. Huckerby} 22nd. August, 1939. Gleason Works, 1000 University Avenue, Rochester, N.Y., U.S.A. Dear Sirs, Thank you for your letter of August 12th. sending drawings of the 13/43 ratio gears. We note these may not arrive until September 30th. but hope that you can improve on this date. Your drawings give the part numbers of these gears as GB.4994/5. These are actually the numbers of our 12/41 ratio, and we should be glad if you would allot new numbers - GB.5354 to the pinion and GB.5355 to the wheel. Yours faithfully, for ROLLS-ROYCE LTD. | ||