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).
Table of part numbers for petrol system components across various models.
| Identifier | ExFiles\Box 167\4\ img099 | |
| Date | 18th September 1935 guessed | |
| 20/25. Bentley. Latest 40/50. Petrol Tank F.60458 F.B.883 F.87844 Petrol Gauge Tank unit. F.58445 F.B.393 F.87877 Petrol Gauge Instrument. D.54617 D.B.154 D.74870 | ||