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 design position updates for items on the 4 1/4 Litre Bentley Chassis.
| Identifier | ExFiles\Box 161a\4\ scan0189 | |
| Date | 4th February 1937 | |
| (2) ITEM. DESIGN POSITION. PRESENT 4¼ LITRE BENTLEY CHASSIS - CONTINUED. Induction system for 4 port cylinder head. Put aside. Steel stoneguard with continuous attachment petrol tank. Completed 4.2.37. (Lec.5500). Hardy Spicer propeller shaft (N.Sch.5038). In hand. Machining to give extra clearance on Mechanics propeller In hand. shaft forks (N.Sch.5047). | ||