Erics - for the paint marks, use the search function, from the "Search" tab. In the search window use "paint dots", with the quote marks, you will get a very manageable listing of where and how the paint marks were used, and the various colors. The 190 SL group refers to this as "dotology".
Good luck, and there are quite a number of these marks on the chassis, the inner fenders, springs, shocks, etc.