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).
Second discharge test results for a P & R 60 E II component.
| Identifier | ExFiles\Box 38\5\ Scan068 | |
| Date | 15th August 1919 | |
| X.3398. Mr. Clark. 15.8.19. 2nd. DISCHARGE OF P & R 60 E II Total time = 8.5 hrs. amps = 6.0 Amp hrs.= 51.0 Discharged in two periods. L.F. | ||