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 {Mr Griffiths - Chief Accountant / Mr Gnapp} /kb. [Shorthand notes] | ||
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).