Bosch 6 volt starter.

I think it is from a VW, but am not sure.

Solenoid is good.  starter is intermittent.  I did not test its ability to turn a car engine.

All electrical contacts (including ground) should be cleaned.
 
Please look at the photographs.

International buyers please read:
It is the buyer's responsibility to pay all customs or import fees taxes and duties. 
I do not put false information on customs forms.