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).
Volt-ampere characteristic curve diagram for a shunt machine.
| Identifier | ExFiles\Box 61\2\ scan0220 | |
| Date | 12th December 1925 guessed | |
| DIAGRAM 1 VOLT-AMPERE CHARACTERISTIC SHUNT MACHINE. VOLTS AMPERE. L K C B Q R P T S 0 | ||