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).
Short memo confirming that two pieces of low carbon material will be sufficient for Geoffrey Summers of Summers Chester.
| Identifier | ExFiles\Box 113\5\ scan0101 | |
| Date | 17th November 1939 | |
| 1010 17/11/39. GEOFFREY SUMMERS, SUMMERS CHESTER. TWO PIECES LOW CARBON MATERIAL WILL BE SUFFICIENT ROBOTHAM. | ||