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).
Pamphlet from AC-Sphinx Sparking Plug Co. Ltd. about their new Isovolt alloy.
| Identifier | ExFiles\Box 79\2\ scan0195 | |
| Date | 4th April 1930 | |
| Hs.{Lord Ernest Hives - Chair} [struck through] c.to EFC. X1026. ROY{Sir Henry Royce}/GEA.9/EB.4.4.30. The AC-Sphinx Sparking Plug Co.Ltd., have sent us the attached pamphlet (one copy only received, to Hs{Lord Ernest Hives - Chair}), which gives particulars of various tests which have been carried out with ordinary electrode wire and the new Isovolt alloy which they are now using exclusively on all AC Sparking Plugs. If further copies of this pamphlet are required, they will be glad to send same on application. ROY.{Sir Henry Royce} | ||