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 40/50 HP and 20 HP production chassis.
| Identifier | ExFiles\Box 29\2\ Scan211 | |
| Date | 2nd May 1929 | |
| Y3066 BY/Mtnll/N.2.5.29. 40/50 & 20 HP. CHASSIS - STANDARDISATION SHEETS. PARTS NOT YET FITTED TO PRODUCTION CHASSIS. Date Issued | Stn. Sht. No. | TITLE | Date completed | Series where Brought in | Chassis To Test 40/50 HP. CHASSIS. 1.11.28 | X.4037 | Enots Petrol Filter | 8.12.28 | J.2. | 24.6.29 12.2.29 | X.7230/5230 | Staybrite Steel for Exhaust Snout. | 14.3.29 | J.2. | 24.6.29 20 HP. CHASSIS. 6.11.28 | X.5260 | Mod. to Bonnet Lines | 11.1.29 | Not Settled. | 20.2.29 | X.4491 | Tangye Jack for 20 HP. | 25.4.29 | As soon as available. | 30.5.28 | X.5420 | Modified Brake Lever. | 8.4.29 | 51 in 'O'. | 6.4.29. | ||