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).
File note regarding radiators for Cresta H B50, Ripple 1R1, and Corniche models.
| Identifier | ExFiles\Box 97\3\ scan0165 | |
| Date | 28th June 1939 | |
| 400C. HPS.{Horace Percy Smith - Experimental Factory Mgr} Rm{William Robotham - Chief Engineer}/Ed.{J. L. Edwards} 7/JH. 28.6.39 Radiators - Cresta H B50, Ripple 1R1 & Corniche file 1280. | ||