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).
List of batteries examined by Mr. Clark and Mr. McKinnon.
| Identifier | ExFiles\Box 46\3\ Scan045 | |
| Date | 7th February 1922 | |
| Mr. Clark. X607 7.2.22. Please note list of batteries examined by yourself and Mr. McKinnon to-day. 1. 12 V battery, chassis No.71TW. RR 2. 12 " Test Dept. battery. C 3. 12 " " ". C 4. 12 ". Battery chassis No.62AE. C 5. 12 " Test Dept. battery. RR 6. 2 V cell chassis No.26 LW RR 7. 12 V battery chassis 45 MG (passed OK) 8. 2 V cell T.B.Johnson Newcastle. RR 9. 2 V cell Test Dept. C. (Sgd) C. Barkworth. | ||