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).
Blank page with a purple ink date stamp at the bottom.
| Identifier | ExFiles\Box 36\3\ scan 076 | |
| Date | 14th May 1920 | |
| ROYCE, LIMITED PATENT ROOM. 14 MAY. 20 DERBY | ||