101 135-2 waits in Aachen Hbf on 16 November 2001. On the sidewall, the number is given twice. Some pictures i found on the web show that this loco had a "More time for children" advertising in spring 2001, with the loco number written on the gray area. Such advertisings are often made of adhesive tape, so i guess the upper number together with the DB logo reappeared when the advertising was removed.
Digital photo by Christoph Schmitz