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 a 20 HP chassis, listing parts not yet fitted to production models.
| Identifier | ExFiles\Box 29\2\ Scan131 | |
| Date | 1st February 1927 | |
| 1st. February 1927. 20 HP. CHASSIS - STANDARDISATION SHEETS. PARTS NOT YET FITTED TO PRODUCTION CHASSIS. Date Issued | Title | Date Completed | Series where brought in | Chassis to Test --- | --- | --- | --- | --- 18.5.26. | Pedals nearer to dash. (Handwritten: ✓OK) | 14.6.26. | 151st "J" | 26.2.27 18.5.26. | Modified Steering (Handwritten: 9 GIII ✓OK) | 14.6.26. | 151st "J" | 26.2.27 27.5.26. | Ammeter made by Elliotts (Handwritten: OK) | 27.8.26. | 151st "J" | 26.2.27 31.5.26. | Moulded Redmonal Coil Case (Handwritten: OK) | 14.6.26. | "K" | 16.4.27 22.6.26. | 40/50 Type Klaxon Switch and Wire for 20 HP. (Handwritten: OK) | 14.7.26. | 151st "J" | 26.2.27 16.9.26. | Ignition Coil with finer primary winding. (Handwritten: OK) | 19.10.26. | "K" | 16.4.27 24.9.26. | Main Bearings with Steel Shells. (Handwritten: 10 GIII OK) | 27.10.26. | Not known. | 22.9.26. | Distribution Box Cover - Method of fixing altered. (Handwritten: OK) | 20.10.26. | 176th "J" | 19.3.27 22.10.26. | Incorporation of B. Type Gear Lever with "D" Steering. (Handwritten: OK) | 11.11.26. | "K" | 16.4.27 26.10.26. | Flexibility in Servo Device. (Handwritten: (Oil with standard spring) 9 GIII 11 GIII 10 GIII OK) | 24.11.26. | "K" | 16.4.27 18.11.26. | Modified Louvres to Bonnet (Handwritten: OK.) | 29.11.26. | - | - 18.11.26. | Jubilee Clips for Rubber Connections. (Handwritten: OK) | 17.12.26. | "L" | 8.10.27 14.12.26. | Solid Pole Pieces for 20 HP. Dynamo (Handwritten: OK) | 12.1.27. | "K" | 16.4.27 17.12.26. | Improved Method of Holding Battery Box (Handwritten: Not thoroughly tested 12.1.27.) | | "K" | 16.4.27 4.1.27. | Thermometer with Electrical Contact (Handwritten: requires 10,000 miles OK) | 15.1.27. | 101st. "K" | 16.7.27 7.1.27. | Spring Loaded Cross Steering Tube (Handwritten: requires 10,000 miles OK) | 20.1.27. | "K" | 16.4.27 24.12.26.| Side Steering Tube Ends (Handwritten: faint OK.) | 27.1.27. | "K" | 16.4.27 | ||