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).
Cost breakdown of standard electrical units for the 40/50 HP Chassis.
| Identifier | ExFiles\Box 50\1\ Scan005 | |
| Date | 14th March 1921 | |
| X.4289. To EFC. from Rd. Hs{Lord Ernest Hives - Chair} Rd/Rns1/57/T14.3.21. RECEIVED X 4289. COST OF ELECTRICAL UNITS FOR R.R. CARS. EFC1/T.14.3.21. The following are the Works Costs of the Standard Electrical Units as fitted to the 40/50 H.P. Chassis Costs do not include fitting to Car, or Testing. TITLE. SEC: NO. COST. Magneto Machine. 12. 10. 0 Distributor. 5150 15. 17. 4 Distributor Wires and Tubes. 5210 4. 16. 8 Condenser. 7370 2. 7. 1 Ignition Coil. 7350 4. 8. 2 Ballast Resistance. 7300 1. 7. 7 Steering Column Switch. 7060 3. 0. 9 TOTAL DISTRIBUTOR SECTION 31. 17. 7 S.S. Motor Armature. 7200 9. 5. 4 Brg.Bracket & Cross Connection. 7210 1. 10. 2 Commutator & Brushes. 7220 7. 8. 0 Frame & Field Winding. 7230 8. 6. 4 Epicyclic Gear. 7240 12. 14. 7 Assembling Motor Units. 5. 9. 9 TOTAL S.S. MOTOR. 44. 14. 2 Main Switch. 7260 5. 13. 10 Push-button Switch. 7270 1. 16. 0 Actuating Box. 7280 5. 0. 9 Dynamo Machine. 7310 14. 10. 0 Dynamo Pulley & Terminal. 7310 10. 0 Switch Box & Ammeter. 7190 4. 17. 3 Wiring Tubes and Clips. 7360 13. 2. 11 Lamps and Brackets. 20. 8. 6 Junction Box. 1. 9. 0 Battery Box. 3. 16. 7 D/Rd. lns. | ||