Cost comparison of different steel types for forging Bentley III components.
| Identifier | ExFiles\Box 100\1\ scan0020 | |
| Date | 9th July 1937 | |
| 9.7.37. BENTLEY III FORGING COSTS. 208A Steel Mild Steel. Saving by Mild Steel. Dies. Yoke Piece 12/3d. 6/5d. 5/10d £35 FB.2942 Main Lever 47/3d 31/6d 15/9 £73. FB.2939 By using mild steel for both Yoke and Main Lever the saving in cost per chassis = £2. 3. 7. 1 lb of 208A steel costs 4.3d. 1 lb " Mild Steel " 1.18d. | ||
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).