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).
Phantom III No. 13 unit standard production big-ends after a 15,945-mile road run in France.
| Identifier | ExFiles\Box 91\2\ scan0336 | |
| Date | 5th October 1937 guessed | |
| 32.EX. PHANTOM III No.13 UNIT. STANDARD PRODUCTION W/MT BIG-ENDS RUN 15,945 MILES ON ROAD IN FRANCE. CASTROL "CW" OIL USED. ← 1 TO 6 → | ||