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 40/50 HP & 20 HP chassis, listing parts not yet fitted to production.
| Identifier | ExFiles\Box 29\2\ Scan160 | |
| Date | 3rd October 1927 | |
| X3066 BY/Mtn17/G.3.10.27. 40/50 HP. & 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. 26.5.27. | X.4124/7350 | Jack Pads for Rear Axle | 16.6.27. | E.2 | 15.10.27 24.12.26 | X.8400/8600 | Spare wheel carrier and Luggage Grid at rear. | 1.6.27. | Not known. 9.2.27. | X.8450 | Side Steering Tube End. N.Sch. 2258. | 18.3.27. | E.2 | 15.10.27 29.9.26. | X.7390/7380 | Front Wing Stay. | 23.2.27. | Not settled. 12.5.27. | X.8671 | Dynamo with narrow brushes and increased air gap. | 30.5.27. | E.2 | 15.10.27 14.7.27. | X.4590/8150 | Water Pump Gland Packings. | 22.8.27. | 50 in E.2 | 27.11.27 9.9.27. | X.6720 | Ballast Resistance of 39" of 33 SWG. Nickel Wire. | 23.9.27. | When existing material has been used. 6.9.27. | X.2894 | Tungsten Contact Points for Battery Ignition. | 21.9.27. | ..do.. 29.8.27. | X.993 | No.7 Compact Tyre Pump | 13.9.27. | ..do.. 20 HP. CHASSIS. 23.5.27. | X.5460 | New Petrol Tank with reserve and filler | 23.6.27. | L. | 8.10.27 23.5.27. | X.235/5520 | Hydraulic Damper on Rear. | 20.6.27. | 101 in L. | 15.1.28 | ||