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).
Log tracking the specifications and testing history of ignition components supplied by Reynolds & Co.
| Identifier | ExFiles\Box 35\6\ scan 090 | |
| Date | 28th September 1920 | |
| 5 [Annotation in left margin spanning rows IPA to IPD: .125" dia.] | Ref.letter. | Firm | Contacts or rods. | Description. | Date. | Remarks. | |-------------|---------------|-------------------|-----------------------------------------------------------------------|---------------------|-----------------------------------------------------------------------------| | ✓ IPA | Reynolds & Co. | C | Fitted by Reynolds to Std. R.R. battery ignition blade and screw. | 14.6.21. | Handed Hs.{Lord Ernest Hives - Chair} for R.{Sir Henry Royce} | | IPB. | " | " | " | 9.9.21. | Reptd. AB. 22. Renewed. 28.10.22. | | IPC. | " | " | " | 9.9.21. 26.10.22. | Reptd. AB. 22. Renewed. | | IPD. | " | " | " | Oct./21. 31.1.22. | Running on 2 EX. Run 1500. O.K. Returned. Taken off when sold. | | ✓ IPE. | " | " | Std.dia." .150" | 9.11.21. | Handed Mr.Hancock. Test Engine. [Handwritten: Off 1.9.22. No trouble] | | ✓ IPF. | " | " | " | 9.11.21. | Handed Mr.Hancock. 4 EX. [Handwritten: See file] | | ✓ IPG. | " | " | " | 12.4.22. | Handed Mr.Hancock. with paper condenser. [Handwritten: See file] | | ✓ IPH. | " | " | " | 25.1.22. | Demonstration Car. [Handwritten: Retd after 14000 miles 11.10.22] | | IPI. 4AB | " | " | .150 dia. 25% iridium. | | Handed Mr.Hancock. 6-EX. R's car. | | ✓ IPJ. T. | " | " | " | | Handed Mr.Hancock. Done 3000 miles. Badly burnt away. 1-EX. | | ✓ IPK. 3 | " | " | " | 30.6.22. | Handed to Mr.Hancock for 1 EX to replace IPJ. | | ✓ IPL. | " | " | " | | Lost ? | 28.9.20. | ||