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 sheet with a handwritten report on a battery performance test.
| Identifier | ExFiles\Box 54\1\ Scan220 | |
| Date | 1st December 1924 | |
| RR 236 (150 BKS.) (DS 431-8 12 24) MP J06975 ROLLS-ROYCE LTD. INSTRUCTIONS. II To Order No. JC49 Customer's No. All cells went down equally & shewed negative weakness on the Cadmium. The tests on this battery further tends to show competitors battery's do not give a performance equal to our Standards. This battery has run 6438 miles. Signed g.f. This Sheet must be filed on completion of the work. | ||