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).
Faults and resolutions for vehicle exhaust systems over a six-month period.
| Identifier | ExFiles\Box 146\2\ scan0295 | |
| Date | 13th July 1937 guessed | |
| ( 6 ) 3.1/2 Litre 4.1/4 Litre Total B-104-HK.{Col. T. Harker - Sales} 10.176 Km. Lapped in the valve of cut-out. B-102-HK.{Col. T. Harker - Sales} 12.615 Km. As above. 14. EXHAUST CUT OUT RATTLES. June quarter C.C. 2 2 C.P. Previous quarter C.C. C.P. Six Months 2 2 15. a) FRONT SILENCER CRACKED OR BURNT b) Rear Silencer Cracked or Burnt. June quarter C.C. C.P. Previous quaretr C.C. I I C.P. Six Months I I B-41-JY. New Car B-107-GP. 21.500 Km. Fitted a chromium plated extension pipe 16. REAR EXHAUST PIPE TOO SHORT. June Quarter C.C. I I C.P. Previous quaretr C.C. I I C.P. Six Months 3 3 | ||