Bt 50 85 28-34 998-0 CH-BLS at the end of a train of EW III coaches. This cab coach was rebuilt in 2006 from a first class car built 1975. The blue signal means "shunting forbidden", it is standing away from active tracks and irrelevant for operations, but can be operated from the preserved mechanical signaltower. Kerzers, 2019-10-01.