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).
Instructions for a three-month outdoor exposure test comparing a standard H.T. ignition cable with a Maconit sample.
| Identifier | ExFiles\Box 168\1\ img032 | |
| Date | 29th June 1929 | |
| RR 238 (150 BKS) (SH57. 29-6-29.) MP 224358 ROLLS-ROYCE LTD. INSTRUCTIONS. To 19 Order No. Customer's No. supposed to have only a small percentage of pure rubber. A sample of our present standard H.T ignition cable has also been placed outside along with the Maconit sample, and both samples will be left for approx 3 months starting from April 30TH Signed H.E.W. This Sheet must be filed on completion of the work. | ||