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).
Modification note for the 'R2' Series chassis confirming no extra tooling cost.
| Identifier | ExFiles\Box 149\2\ scan0154 | |
| Date | 8th November 1923 | |
| R2/ADVANCE/MODIFICATIONS X Extra Tool Cost - Nil. Could be brought on to production at the 1st. Chassis in "R2" Series (without scrap.) DATE C8.11.23 | ||