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).
Record card tracking the testing and service history of a tall coil.
| Identifier | ExFiles\Box 45\4\ Scan223 | |
| Date | 27th March 1923 | |
| TALL COIL RECORD Coil No. 2.TG3 X. No. 4079 | Date. | Service on. | If on car miles run. | If on test notes re use. | Total miles run. | Remarks re performance. | |---|---|---|---|---|---| | 27-2-23 | Received. | — | — | — | In mouldrite case. | | 21-3-23 | Bench tested | — | Production tests and quantities obtained. | — | O.K. | | 27-3-23 | On 2.G.II | — | — | No record | No record kept by test house of miles run by school car. | | 23-7-23 | Taken off. | — | — | — | Retd to lab for heat test. | | 26-8-23 | Bench tests | — | Temperature tests | — | Tests to ascertain effect of temperature on material of case See report PB 114. | | 17-1-24 | Lab. | Superseded by .25" taller coil of 18,000 turns. | | | | 27.3.23. | ||