And sketch of a Mercedes large crown wheel's teeth.
| Identifier | ExFiles\Box 22\5\ Scan059 | |
| Date | 21th August 1914 guessed | |
| Mercedes large crown wheel | ||
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).