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 positive rotation magnetos in the laboratory with condition remarks.
| Identifier | ExFiles\Box 4\5\ 05-page326 | |
| Date | 9th January 1925 | |
| X 430 9.1.25. LIST OF POSITIVE ROTATION MAGNETOS AT PRESENT IN LAB. Make. Type. No. Remarks. S.E.V. C6 186909. O.K. American Bosch. ZR6 3385100. " " B6 3002660. " Robert Bosch. ZF.6. 2490573. " " ZR.6. 2571554. " " ZR.6. 2571555. " Watford. EO.6. 72349. Noisy. Low speed sparking bad. " " 70033. Old type lever - O.K. " " 63302. Bad low speed sparking. " " 73953. Bakelite pinion (EP{G. Eric Platford - Chief Quality Engineer}). " " 73954. Bakelite pinion. " " 73955. Bakelite pinion (EP{G. Eric Platford - Chief Quality Engineer}). " " 73957. Bakelite pinion. " " 73983. " " " ROL. 67642. O.K. " " 67693. Off 6-GII. " " 73710. Off 7-GII. -- -- -- -- EPC/HEW. | ||