Faint blueprint drawing with a 'Print Room' reception stamp.
| Identifier | ExFiles\Box 28\1\ Scan217 | |
| Date | 3rd February 1931 | |
| PRINT ROOM, 3 FEB 31 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).