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).
The mileage accumulated by various Elliott ammeters on different test cars.
| Identifier | ExFiles\Box 168\5\ img040 | |
| Date | 4th January 1926 | |
| X4622 4.1.26. X.4622 - ELLIOTT METERS. Ammeter No.140998 has done 948 miles on 10-EX since 9.12.25. Ammeter No.140999 has done 10,000 + miles on 8-EX since 14.9.25. Ammeter No.141000 has done 789 miles on 9-BIII since 8.12.25. Ammeter No.141001 has done 108 miles on 11-GIII since 2.10.25. G.T.C. EFC. | ||