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).
Particulars of the rubber solution, Bortick No. 292 C., as used on the 22-G-IV body.
| Identifier | ExFiles\Box 102\2\ scan0183 | |
| Date | 5th February 1936 | |
| X504 E/EV.{Ivan Evernden - coachwork} Hs{Lord Ernest Hives - Chair}/FD.{Frank Dodd - Bodies}6/JH.5.2.36. Herewith are particulars of the rubber Solution as used on 22-G-IV. body. Name of Product:- Bortick No. 292 C. Universal Cement. Manufacturers:- Boston Blacking Co. Ltd., Ulverscroft Works, Leicester. Suppliers:- Messrs Tooby Adkins & Co. Ltd., 41 & 42, Bishop Street, Coventry. Hs{Lord Ernest Hives - Chair}/FD.{Frank Dodd - Bodies} | ||