Just bought the Mercedes Documentation on Microfiche. Manual, Parts List etc.
Windshield Washer System
The early version of 190 SL has a special windshield washer with a hand pump knob. Hand operated windshield washer system was optional and had a black water container (very rare) with a small spray nozzle.
"Shallow" clear glass "beehive" parking light and indicator. Export version differs from the German version by different cabling. The Export version has an additional cable for the low beam light.
Lights on rear panel with an option to light the country plate as well. The later version has the lights in the bumper. The pull on the trunk is different as well.
1955-1957 mainly the large door pulls were used but there are different versions with door handle in chrome. Depending on version there are either 7 or 8 door panel pleats.
The dashboard has some small difference on the timeline. The glovebox pull and lock has changed. The hand clock was optional. The Combination Starter Button/Steering Wheel, Lock Switch was optional.