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).
Standardisation sheet for parts not yet fitted to the 20 HP production chassis.
| Identifier | ExFiles\Box 29\2\ Scan139 | |
| Date | 1st April 1927 | |
| BY tn32/G.1.4.27. X3066 225 388 20SS{S. Smith} 22 20 HP. CHASSIS - STANDARDISATION SHEETS. PARTS NOT YET FITTED TO PRODUCTION CHASSIS. Date Issued | Stn.Sht. No. | Title | Date Completed | Series where Chassis brought in to Test --- | --- | --- | --- | --- 31.5.26. | X.4079 | Moulded Redmonal Coil Case. | 14.6.26. | "K" 16.4.27. ✓ 16.9.26. | X.4653 | Ignition Coil with finer primary winding. | 19.10.26. | "K" 16.4.27. ✓ 24.9.26. | X.5010 | Main Bearings with Steel Shells. | 27.10.26. | Not known. 22.10.26. | X.5430-5310. | Incorporation of B. Type Gear Lever with "D" Steering. | 11.11.26. | "K" 16.4.27. ✓ 26.10.26. | X.5370 | Flexibility in Servo Device. | 24.11.26. | "K" 16.4.27. 18.11.26. | X.5260 | Modified Louvres to Bonnet. | 29.11.26. | - | - 18.11.26. | X.5180 8180 | Jubilee Clips for Rubber Connections | 17.12.26. | "L" 8.10.27. 14.12.26. | X.4638 5660 | Solid Pole Pieces for 20 HP. Dynamo | 12.1.27. | "K" 16.4.27. ✓ 17.12.26. | X.5575 | Improved Method of Holding Battery Box. | 12.1.27. | "K" 16.4.27. 4.1.27. | X.5250 3875 | Thermometer with Electrical Contact. | 15.1.27. | 101st. "K" 16.7.27. 7.1.27. | X.5425 | Spring Loaded Cross Steering Tube. | 20.1.27. | "K" 16.4.27. 24.12.26. | X.5450 | Side Steering Tube Ends. | 27.1.27. | "K" 16.4.27. 6.1.27. | X.4132 | Solid Poles for 20 HP. Starter Motor | 10.3.27. | "K" 16.4.27. | ||