A Pertronix electronic ignition conversion module for all S155 and S156 distributors as found in early world market X1/9, 850, A112 and 127 cars.
Simple two-wire hook-up completely replaces single-points / condenser set-up.
A great improvement for reliability. Never file your points again!
For best results, use with Marelli Coil PN 4071394 / 4250396-OE or Bosch Super Blue Coil PN: 4071394-BOSCH-BLUE
New and unused.