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).
Cost estimate for extra jigs, tools, and equipment relating to a modification already in production.
| Identifier | ExFiles\Box 102\1\ scan0372 | |
| Date | 12th August 1935 | |
| Est. cost of extra jigs, tools and equipment (Sft{Mr Swift}/Ws.12.8.35)£18.0.0. This modification is already on production. All cars being changed from 181st in "D" series. STAMP: RECEIVED 8 JUL 1935 W O HANDWRITTEN: Material s.d | Labour s.d | Charges s.d | Total s.d Cost of Old Part. 10-6 | 10 | 1-3 | 12-7 Cost of New Part. 9-8 | 2-2 | 3-3 | 15-1 Nett Increase. | | | 2-6 | ||