Note on lowering the silencer by .500 and ordering brackets for the old standard position.
| Identifier | ExFiles\Box 38\4\ Scan121 | |
| Date | 11th October 1920 | |
| X.3642 11.10 20 X.3642: SILENCER .500 LOWER. Brkts. for old Std. position ordered up to end of P. series. | ||
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).