Blueprints for the windings of the Wraith III ignition coil.
| Identifier | ExFiles\Box 164\5\ img281 | |
| Date | 26th May 1937 | |
| To H.P.B. c. Rm {William Robotham - Chief Engineer} /Wst. RS. {Sir Henry Royce's Secretary} 6013. BY {R.W. Bailey - Chief Engineer} /RD.6/B.26.5.37. Ignition Coil - Wraith III. Please receive herewith blueprints of DW.290, giving particulars of the windings required on the ignition coil D.75673. Apparently this feature has been tested, and we are requested to issue the drawing for record purposes only. BY {R.W. Bailey - Chief Engineer} /RD. | ||
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).