I have a Jefferson Ignition Coil that fits the 1920-22 Dort. This coil also fits the Stephens , Skelton, Briscoe, Allen, Beggs Six, Monroe, Pilot, and a Metz. This coil is a Jefferson Ignition coil C-501. This is an NORS coil, new in the box. Thanks, Dan, dlmarx@bellsouth.net