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).
Page comparing the cost and characteristics of 'Tenoid' and 'Ferodo' materials.
| Identifier | ExFiles\Box 26\4\ Scan367 | |
| Date | 1st August 1928 guessed | |
| contd :- -2- characteristics all round than our standard material. Incidentally there is supposed to be a reduction in cost with Tenoid over Ferodo. Ha/An. | ||