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).
Checklist of tools to be always kept on a 40/50 HP car, with handwritten annotations.
| Identifier | ExFiles\Box 20\8\ Scan035 | |
| Date | 24th May 1923 guessed | |
| 40/50 H.P. TOOLS TO BE ALWAYS ON CAR. ✓ Jack and handle. ✓ Mallet. ✓ Wheel spanner. X Spare valve, spring, cotter, collar and protector. X Valve lifter. X Oil syringe. oil can X Petrol tank spanner. Instruction Book. ✓ Special tappet spanner. ✓ Bonnet keys. ✓ Inspection lamp. X Tyre pump. X Tools for rims or tyre levers? X Tyre pressure gauge. 1/4 & 5/16 spanner (2BA) ✓ 2 BA spanners. ✓ 5/16 & 3/8 ". Magneto contact breaker spanner ✓ Plug spanner and tommy bar. ✓ Small adjustable spanner. X Valve cap spanner. X Hammer. ✓ Screwdriver. ✓ Gas pliers. ✓ Sparking plug. Case of bulbs 1/4 & 5/16 spanner for dynamo & starter | ||