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).
Request to fabricate a 'Y' piece and three baffles for a Phantom III experimental silencer.
| Identifier | ExFiles\Box 93\1\ scan0093 | |
| Date | 6th March 1937 | |
| 323. HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Whym. Rm{William Robotham - Chief Engineer}/Whym.3/AP.6.3.37. PHANTOM III. EXHAUST SYSTEM. Will you please make up for us one "Y" piece and fit same to our experimental silencer. Also 3 baffles 6.00" X 2.00" Rm{William Robotham - Chief Engineer}/Whym. | ||