M-L Coventry PM1 Magneto Vintage Veteran Pre War Motorcycle JAP engine Norton BSA Triumph AJS magneto circa 1920

Possibly from Triumph motorcycle please note the stamps on sprocket

All threads are good

Advance retard mechanism working

Unrestored condition.

Turns freely.

Creating fat blue sparks when turned by hand.

Clockwise rotation when looking from drive end

45 mm spindle high

Untested on motorcycle

This is about 100 years old magneto I’m selling this for parts or renovation only