All 12 of the class Ge4/4III locos are painted in advertising liveries, most of which are fairly unattractive. No. 648 carried one of the most photogenic schemes for a few years, a black and red livery advertising German chemical company Lanxess.
No. 648 was photographed leaving Celerina on train RE1148, the 14:04 St. Moritz - Chur on 9 January 2009.