The oldest operational cogwheel railcar worldwide, BCFhe 2/3 # 6 of the Rigi Bahnen, built in 1911 for the Arth-Rigi-Bahn (ARB), is running down from Rigi Kulm to Arth Goldau as train CC 152 between Rigi Kulm and Rigi Staffel, with cars yellow B # 35 of 1899 (built as B # 22 by SIG for the ARB), red B # 5 of 1871 and brown C # 11 "Bambus" of 1889 (completely rebuilt 1996).