I was rumaging through my home office and came across the original document folder for my 230SL. Amoung all the other things (even has operating instructions for the Becker radio and a hang tag that explains how to operate the heating and vent system) was a card that had the "Suggested Retail Price includes the following Standard Equipment" and one section was Mirrors and listed Eterior - Left Side, Inside - Rear View - Non Glare, and Vanity.
My car has an exterior mirror on the right side also. You can barely see it from the drivers seat because the post blocks most of it so it's not very practical. Just wondering if that was an option you could order or was it added by the first owner.
Thanks,
David