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 for a proposed bumper with specified dimensions and hardness.
| Identifier | ExFiles\Box 99\2\ scan0148 | |
| Date | 4th March 1938 | |
| 3/8" B.S.F. 3/4 SPHERE 3" RAD. 2" 1/16" 1/8" 2" DIA. DUROMETER HARDNESS 53-58. PROPOSED BUMPER FOR ROLLS ROYCE Co., LTD. 4-3-'38 FULL SIZE D.B. 695 | ||