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).
Request to obtain the patent specifications for B.G. sparking plugs.
| Identifier | ExFiles\Box 58\2\ Scan072 | |
| Date | 26th January 1934 | |
| 61812a By/NHW. From Hs{Lord Ernest Hives - Chair}/Wst. Hs{Lord Ernest Hives - Chair}/Wst.5/MA.26.1.34. B.G. Sparking Plugs. Will you please obtain for me the patent specifications referring to B.G. sparking plugs. Hs{Lord Ernest Hives - Chair}/Wst. | ||