Matterhorn Gotthard Bahn
The Brig-Visp-Zermatt-Bahn ABDeh 6/6, later known as the BDeh 6/6, and later still as the Matterhorn Gotthard Bahn BDeh 6/6, was a two member class of metre gauge, rack rail, electric multiple units operated by the Brig-Visp-Zermatt-Bahn (BVZ), and later by the Matterhorn Gotthard Bahn (MGB), in the Canton of Valais, Switzerland.