Hi Tim, Thanks for digging these photos out - I had already had copies of these sent to me some time ago so unfortunately they don't cast any further light on the layout of the Salon m and WGSm Officers Coaches. I have already pulled together what I know of these two and the layout seems to correlate with what the TCWOs of the time remember - link here -> History - Rolling Stock (british-berliner.org) However, I have been able to make significant progress with the layout of the Bcmk Escort Coach. It still survives in original condition, although now heavily graffited and rusting, in a siding belonging to Erfurter Gleisbau GmbH. I posted a request for help gaining access to the coach on one of the German language railway forums, which "Heiko" responded to and sent me his full set of interior pictures of the coach from 2017! Suffice to say these were more than sufficient to create a pretty good layout plan of the coach, as well as assist with my own Openrails and H0-scale model project of the Berliner. A selection of these photos is linked below:- View down the corridor Seating in first compartment, this had ladder access to the roof-mounted observation dome Wardrobes in one of the TCWO compartments Further TCWO compartment toward the centre of the coach Small kitchen area between the TCWO and seating area Open plan seating - doesn't look very comfortable! Very unusual open-plan area, divided from the corridor with fixed wall panels and no doors The layout plan derived from these and about fifty (!) other photos (which I'm more than happy to send you) is as follows Best wishes, Peter