SEV distributor cap 6 cylinder.
Outside diameter 65 mm.
Sev made two sizes : this is the smaller of the two.
used on : f.e. Delahaye , Talbot Lago, Citroen etc.
A flange-mounted Lucas GJ4F magneto. Clockwise direction, suits Riley 9, WO Bentley and others. Supplied with a 19/20 tooth Simms vernier coupling, which may be useful depending on the application.
Good condition, no missing parts. Magnetic resistance can be felt when turning, and it gives a good spark when a spun. Not tested in a c..