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).
Instruction to remove a green lamp unit for a 10,000-mile test and retain the switchbox for standardisation.
| Identifier | ExFiles\Box 65\2\ scan0055 | |
| Date | 7th February 1930 | |
| X 7730 .. RHC. {R. H. Coverley - Production Engineer} from EFC. {E. Fowler Clarke - Electrical Engineer} c. Hs {Lord Ernest Hives - Chair} /GWH. {George W. Hancock - Head Chateauroux} EFC {E. Fowler Clarke - Electrical Engineer} 6/AD7.2.30. X.4040 . X.7730. 10,000 MILE TEST CHASSIS 14-G4. Will you please arrange to have the green lamp switch and green lamp unit removed from this chassis as this will not be required for 10,000 mile test. As regards the switchbox, this is the original India switchbox incorporating the extended armature contact. This switchbox we wish to remain on because this extended armature contact is a desirable feature in the absence of the green lamp scheme, and istherefore a proposal for standardisation. EFC. {E. Fowler Clarke - Electrical Engineer} | ||