In 2005, with the onset of international movement of Swiss based locomotives, there had to be a move to allocate twelve digit numbers for them.

The name was first applied to Swiss locomotives.

The station straddled the border and it was there that the German steam engine would be replaced by a Swiss electric locomotive.

The two members of the class were so named under the Swiss locomotive and railcar classification system.

Breaking into German, Friedrich delivered it in the piping shriek that the Swiss locomotive had so aptly imitated.

The class was named G 4/5 under the Swiss locomotive and railcar classification system.

Notably, Switzerland had its own separate notation system until 1989, with the Swiss locomotive and railcar classification now only retained for its narrow gauge railways.

They have the same engine and transmission as the Swiss locomotives, but lack the additional particulate filter.

The driver of the Swiss locomotives was unfamiliar with the new layout of the station, which had been recently changed.

The class was so named under the Swiss locomotive and railcar classification system.