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 American alterations with corresponding reference numbers.
| Identifier | ExFiles\Box 81\2\ scan0088 | |
| Date | 6th December 1923 | |
| BJ. BY1-P6.12.23. AMERICAN ALTERATIONS. 3728. Float Needle in Stainless Steel with plain end. 1808) Steering positions. 2027) 2314. Starting Handle. 3246. Junction Blocks for Air Pipe in the top of the loop in the air line. 3498. Threads changed on 2 BA. Bolts. 2172. Broached hole in Float Chamber Cover. 2393. Omitting serrations on Gearbox Side Shaft beneath Distance Bush. 2528. Adjusting Washers on Selector Lock. 2532. Front Bonnet Catch Guide. 2539. Longer Tappet Bolts for fixing cross steering lever. 2550. Deleting lightening undercut in 3rd speed Driven Wheel. 2598. Bonnet Strap screw slotting. 2391. Pressed diagonal Stay for Petrol Tank without bronze bush. 2626. Starter Gear, rear end. 2628. Getting a right hand engine undersheet underneath the Steering Box. 2682. Spring Steel Support Pin for Piston Pin lock. 2764. Modifications to oiling of Side Steering Tube. 2793. Standard nuts on Engine Coupling. 3103. U.1334 Ball End replaced by U.12121 3259. Chamfers in Steering Pivot Bolt Holes. 3396. Longer Exhaust Union Nuts. 2330. Tappet Lever Bosses of Crankcase all alike. 2735. Rear Axle Cover to carry Oil Filler. 2764. Modification to oiling of Side Steering Tube Joint. P.T.O. | ||