One new original Bosch brand starter drive/pinion (made in Germany), part number 1.006.209.101 or 16.084.  This fits:

Mercedes Benz 190C 1961 - 1965
Mercedes Benz 200 1966 - 1967
Mercedes Benz 220b, Sb, & SE 1962 - 1965
Mercedes Benz 230 S & SL 1966 - 1968
Mercedes Benz 250 1968
Mercedes Benz 250SE 1967
Mercedes Benz 280 S, SE & SL 1968
Mercedes Benz 300SEL 1968
Opel GT 1900 1971 - 1973
Opel 1900 & Rallye 1971 - 1973
Saab Monte Carlo 1968
Saab Sonett 1968 - 1974
Saab 95 & 96 V4 1967 - 1973
Saab 99 1970 - 1974
Volvo 122S 1966 - 1968
Volvo P1800 series 1966 - 1973