Internal order for a Model N.F. 10 ampere battery pattern ampere hour meter.
| Identifier | ExFiles\Box 167\2\ img155 | |
| Date | 28th September 1938 | |
| Recv. from EJJ/HC. c. to Rm {William Robotham - Chief Engineer} /RC. {R. Childs} 6103 EJJ/HC8/JW.28.9.38. Department No.479/Order No.816. RE:- CHASSIS ELECTRICAL LABORATORY. Please order from Messrs. British Sangamo Co. Ltd., Cambridge Arterial Road, Enfield, Middx. :- One - Model N.F. 10 ampere Battery pattern ampere hour meter, fitted with dial scaled up to 0-100 ampere hours, red empty hand set at 63 ampere hours, quick make contact located at fully charged position. Catalogue price.............. £6. 10. 0d. Deliver to Chassis Electrical Laboratory. EJJ/HC. 16 | ||
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).