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).
Internal order form for various types of sparking plugs for the Experimental Department.
| Identifier | ExFiles\Box 27\4\ Scan094 | |
| Date | 12th October 1925 | |
| To /Wd{Mr Wood/Mr Whitehead}/Ms. from Hs.{Lord Ernest Hives - Chair} X3035 Hsl/LG12.10.25. Please order for use in Expl: Dept :- 2 doz. A.C. Sphinx B.11. sparking plugs (detachable). 4 doz. Champion No. 8. " " <s>2 doz. Lodge detachable C.3.</s> " " Hs.{Lord Ernest Hives - Chair} | ||