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).
Watford Magneto with an enclosed armature tunnel.
| Identifier | ExFiles\Box 70\4\ scan0212 | |
| Date | 8th May 1925 | |
| X.87976 RR 68 (130T) (DB{Donald Bastow - Suspensions} 923 8-5-25) J.H.D. WATFORD MAGNETO WITH ENCLOSED ARMATURE TUNNEL. | ||