Date stamp from the Print Room in Derby.
| Identifier | ExFiles\Box 15\1\ Scan355 | |
| Date | 8th September 1930 | |
| ROLLS-ROYCE, LIMITED PRINT ROOM. 8 SEP 1930 DERBY. | ||
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).