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).
List of modifications and updates to chassis parts, with their associated reference numbers and dates, marked as sent for costing.
| Identifier | ExFiles\Box 154a\3\ scan0004 | |
| Date | 1st January 1931 | |
| Std. Sheets CHASSIS Sent for Cost X. 4442. Untarnishable finish to Chassis Parts. P.II & 25 HP. done 17.6.30. X. 7260 Revert to Four Ventilating Panels in the bonnet. P.II. X 31.7.30. X. 7410 Rear Springs with Rolled Eyes. P.II. + 18.8.30. X. 7500 X. 7260. X. 7250. Shallow Tank Radiator, wider dashboard, and bonnet over-lapping dashboard. P.II. X 2.9.30. X. 3499. Shutters of Radiator operated with Smith's Calorstat. P.II. X 4.9.30. X. 7190 Oil drain in side of engine case. P.II. + 6.9.30. X. 4469 X. 7010 Nitro Alloy Crankshaft. P.II. X 13.10.30. X. 7080 Air Silencer Carburetter. P.II. 13.10.30. X. 7536 Extra Bracket for Battery Box Support. P.II. 13.10.30. X. 7250 X. 5250: Turbulent Flow Radiator Tubes. P.II. & 25 HP. ✓ 27.10.30. X. 7250 Radiator Cap with Anti-splash valve. P.II. X 7.11.30. X. 7470 Adjustable Pedal Stems. P.II. done 7.11.30. X. 7230 Phantom II Exhaust System altered to 20/25 HP. Scheme. X 1.1.31. g/kb. [Shorthand notes] | ||