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).
Test report for an Anchor Sparking Plug.
| Identifier | ExFiles\Box 33\3\ Scan003 | |
| Date | 2nd November 1911 | |
| X923 X18120 Section. 402 1600 DESCRIPTION:- Anchor Sparking Plug. Date sheet from office. 2.11.11 Date received. - Date Works instruction. - Material received. - Reported T.D. office. Reported to office. Date. Miles. Report. 8/11/11 - 6 testing on 1718 longflied by M Wormald all o.k. at 8pm.. Still running O.K. at 17.8 29/11/11 - Testing on 1718 O.K. 4/12/11 - " 13/12/11 600 " 29/12/11 750 Testing - 1718 20/1/12 - Found worn out and given short running changed for Bosch O.K. if changed. Date. Miles. Report. 14/2/12 - Reported M Wormald. See E/p file EP{G. Eric Platford - Chief Quality Engineer}/TH215. Not so good as Bosch. Electrodes became oxydised after a time. | ||