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).
Post Office Telegram urgently requesting a front expansion box.
| Identifier | ExFiles\Box 82\5\ scan0079 | |
| Date | 14th April 1937 | |
| ROYCAR DERBY = GRYLLS 3 BIV FRONT EXPANSION BOX REQUIRED URGENT = WALLER + | ||