This is the worldwide oldest operational cogwheel railcar, BCFhe 2/3 # 6 of the Rigi Bahnen, built in 1911 by SLM, SWS and MFO for the Arth-Rigi-Bahn (ARB). Rebuilt in 1939 for 1500 V DC instead of 750 V before. Refurbished from 1985 to 1990 and brought back in the original appearance. Here the vehicle is seen with yellow car B # 35 from 1899 and B # 11 "Bambus" from 1889 as "Rigi Pullman" on the occasion of the vehicle parade 150 years Rigi Bahnen.