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).
Noisy colonial silencers.
| Identifier | ExFiles\Box 152\3\ scan0022 | |
| Date | 20th July 1912 | |
| R.R. 512 (2 1/2 H) (X. 435. 14.12.11) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2227. Section 1300. OK HA Description: Noisy Colonial Silencers. XU42 Date: 20/7/12 REPORT: What is this like on a covered body. Can noise be cured by alteration in position of snout. | ||