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).
Estimation for the cost of new tools and their production implementation for the 'R' Series chassis.
| Identifier | ExFiles\Box 105\4\ scan0197 | |
| Date | 25th March 1937 guessed | |
| Estimated Cost of New Tools £15. 0. 0. Could be brought on to production at the 101st chassis in "R" Series (without scrap) | ||