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).
Blueprint of Phantom exhaust pipes detailing areas of cracking and breakage.
| Identifier | WestWitteringFiles\O\2January1926-March1926\ Scan25 | |
| Date | 27th January 1926 | |
| PHANTOM EXHAUST PIPES CRACKS BREAKS OFF INT ROOM, 27 JAN 1926 DERBY. Sg{Arthur F. Sidgreaves - MD}/ff. 26-1-26 | ||