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).
Blueprint showing a modification to the front undershield to improve the cooling system.
| Identifier | ExFiles\Box 64\1\ scan0079 | |
| Date | 26th June 1934 | |
| MODIFICATION TO IMPROVE COOLING SYSTEM. CUT AWAY FRONT UNDERSHIELD STANDARD FRONT UNDER SHIELD ROLLS-ROYCE, LIMITED PRINT ROOM 26 JUN 1934 DERBY | ||