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).
Record of front and rear axle weights for the 20 HP 'India lll' model with Bijur pipes.
| Identifier | ExFiles\Box 101\1\ scan0074 | |
| Date | 1st May 1929 | |
| *7 X5420 Rm.{William Robotham - Chief Engineer} from Tsn. 1. 5. 29. India lll. _______ 20 HP. axle weights off production with Bijur pipes and bosses etc. Front 143 1/2 lbs. rear 281 lbs. TSN. | ||