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).
The stamping identification for modified petrol pumps.
| Identifier | ExFiles\Box 149\4\ scan0078 | |
| Date | 30th October 1936 | |
| 1263 To Mx.{John H Maddocks - Chief Proving Officer} c. to Sft.{Mr Swift} c. to By.{R.W. Bailey - Chief Engineer} c. to Hd.{Mr Hayward/Mr Huddy} For Depot Sheet. Rm{William Robotham - Chief Engineer}/JBD.{John B. Dixon - Fuel Systems}18/JH.30.10.36. Re Modification of Petrol Pumps. Pumps which have been modified with respect to Brass valves and clips and fitted with the C-3 diaphragms will be stamped G5 on the front of the base. A few pumps have been already marked GM5 also have all the modifications to date. This mark will override all other stamps on the pumps already existing. Rm{William Robotham - Chief Engineer}/J.B.Dixon. | ||