Automatische Übersetzung. Originaltext in: EN - Original anzeigen The prototype of the series is built in 1988 from unit 51 85 21-70 000-6.

The coaches interior is modified by removing all interior walls and fittings and re-fitting as an open saloon, in line with modern passenger taste, in the style of the SBB's EW IV standard coaches. One bay at the coach end has folding seats to allow for a passenger in a wheelchair. In the vestibule, luggage and ski racks are provided, and one of the small windows on the former corridor side is replaced by an equipment cabinet.

The prototype is delivered in an experimental livery: dark brown over grey. / Quellen: http://www.swiss.nwrail.org.uk/nb9403.html

Automatische Übersetzung. Originaltext in: EN - Original anzeigen The following 211x units from this series are converted from Bm 21-70 000 - 219 passenger coaches between 1991 and 1997.

These units are painted in the EW IV livery of dary green over grey, with the addition of a dark green stripe along the lower bodyside as an aid to recognition. / Quellen: https://de.wikipedia.org/wiki/UIC-X-_und_Z2-Wagen_der_SBB, http://www.swiss.nwrail.org.uk/nb9403.html

Automatische Übersetzung. Originaltext in: EN - Original anzeigen From 2011, 138x units from this series are converted to B 21-73 301 - 438 passenger coaches.

Automatische Übersetzung. Originaltext in: EN - Original anzeigen From 2012, 32x units from this series are converted to B 21-73 501 - 532 passenger coaches.