I am selling this Montblanc Quick Color SL (Slimline) two-color ballpoint pen from the eighties. The pen has been used but still looks very good. It should hold a red and blue filling and can switch between them by twisting the pen, however there is some problem with this mechanism which blocks when using two fillings, but it works perfectly fine for one filling. So you can use it as a regular ballpoint pen or please consider this pen for parts or restoration. This auction will be started without a reserve price, please examine the photos before bidding.