This is for a 280SL with the cast iron distributor
Mercedes dealer: Distributor Cap A0001585302, Rotor Arm A0001582031
Euro: Distributor Cap "Beru" euro no 404110040, Rotor Arm "Beru" euro no 405220050
In all honesty I think the Beru parts are just as good if not better than the dealer supplied Bosch items and the euro car parts cost is around 25% of the dealer!
Euro may supply Bosch items if you ask them too but Beru is OEM and i noticed some items on the car were originally made by Beru anyway.