The Blonay-Chamby Railroad Museum is celebrating 50 years of service, it was the first museum railway of Switzerland. "Mallet" G 2x2/2 # 105 "Todtnau", built in 1918 by Maschinenfabrik Karlsruhe/Germany for the Heeresfeldbahn, later running on the line Zell-Todtnau of the Süddeutsche Eisenbahn Gesellschaft (SEG) in the Black Forest, is running for the Blonay-Chamby since beginning. It is leaving Blonay with a train to Chamby on the occasion of the "Mega Steam" festival.