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 experimental tests carried out on various automotive electrical and ignition components.
| Identifier | ExFiles\Box 76\2\ scan0218 | |
| Date | 23th September 1920 guessed | |
| -3- EXPERIMENTAL TESTS CARRIED OUT ON: Disintegration tests of Batteries. Investigation of Bosch Dynamo performances. Tests of Tungsten points taken from Liberty Delco ignition. Investigation of armature winding on Bosch Dynamo. Tests of Silver Distributor Sparking Points. Inspection of parts of American Bosch Magneto. Consideration of schemes of Starter Motor Operation. | ||