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).
Page with a purple date stamp.
| Identifier | ExFiles\Box 19\1\ Scan129 | |
| Date | 13th October 1931 | |
| ROLLS-ROYCE, LIMITED PRINT NO. 13 OCT 31 | ||