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).
List of 'R' aero engine magnetos with their part numbers, remarks, and engine allocation.
| Identifier | ExFiles\Box 43\4\ Scan307 | |
| Date | 23th October 1930 | |
| X.4513B. X.4513W. 23.10.30. R.R. "R" AERO ENGINE MAGNETOS. B.T.H. TYPE SC.12-9. WATFORD SF.12-5 R.H. | L.H. | Remarks. | Engine allotted to. ---|---|---|--- { B.5216 | B.5204 | Loose poles " Magnesium cstgs | R.3. { B.5218 | B.5202 | Magnesium castings. | Spares Handed over to A.M.Bond Stores. { B.5220 | B.5208 | O.K. } Converted O.K. } to SC12-7B type. | R.7. { B.5222 | B.5212 | Loose poles Magnesium cstgs | R.5. { B.5224 | B.5206 | O.K. O.K. | R.11. Fitted temporarily to R.9. { B.6752 | B.7202 | O.K. O.K. | R.15. { E10030 (R.R. property. | E10032 | O.K. O.K. } | "F" engine Exp. 2. { E10034 | E10028 | O.K. O.K. | R.9. { 98087 | 98089 | Partly magnesium cstgs | R.1. { 98088 | 98090 | O.K. O.K. | R.17. Miss England II. { 98101 | 98102 | O.K. | R.19 Miss England II. | ||