Blank folded page with a 'Patent Room, Derby' stamp.
| Identifier | WestWitteringFiles\S\September1928-October1928\ Scan147 | |
| Date | 10th October 1928 | |
| ROLLS-ROYCE, LIMITED PATENT ROOM, 10 OCT 1928 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).