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).
Night letter cable requesting particulars of oil coolers used on the Conqueror engine.
| Identifier | ExFiles\Box 173\2\ img200 | |
| Date | 12th March 1934 | |
| NIGHT LETTER CABLE. U.S.A. HS{Lord Ernest Hives - Chair} 12.3.34. Robotham, Athletic Club, Detroit, Michigan, U.S.A. OBTAIN PARTICULARS OF OIL COOLERS USED ON CONQUEROR IF POSSIBLE SAMPLE ALSO HEAT TO OIL AND MAXIMUM TEMPERATURE ALLOWED* HIVES. | ||