When you are asking questions related to your car, it could be easier to answer, if you post the first digits of the chassis number. This is a great help because MB uses a coding system that is described in:
formatting link
Unfortunately, the description is in Italian language. But you might find it useful and relatively easy to understand. FOR YOUR SAFETY DON'T POST THE WHOLE NUMBER. Skip the last 4-6 digits.
An essential lexikon: Cambio = Gearbox Benzina = Petrol Significato = Meaning Telaio = Chassis Motore = Engine (*) From 1953 until 1959, if the last digit of the chassis is "1", the car was including factory installed tissue sliding roof.
Bye bye from Italy. Cordy