So the booklet I have been referring to is
InterCity, 21 years of progress which was actually published by Ian Allan (ISBN 0-7110-1751-4) in cooperation with the British Railways Board. With all the images I'll insert thumbnails so just click to see the full sized image.
The cover photo shows at the top an InterCity Executive liveried HST before the bodyside grills were painted dark grey. The power car is 43151, one of the GWML spares, so I assume that is why there is no set numer.
The cover photo at the bottom shows a typical WCML loco-hauled set for the mid-1980s but the second coach is M11011, mentioned above as carrying the original InterCity Executive scheme that had a light grey band above the cant rail.
I've included this page because it shows a ECML set with two catering vehicles in InterCity Executive colours. The third coach is a TRUK and the fourth is a TRFB. I think this might have been one of the Pullman sets before the addition of the third TF (and removal of a second TS to keep the formation 2+8). My reasoning for this is that if you look at the front of the second TF the half width window (toilet or luggage rack) is actually a hull height frosted glazed unit, rather than the usual split window with the upper half glazed. This indicates it is a TF that has had a luggage rack removed and replaced by a payphone. Whilst one TF in every GWML set had this done, only the two Pullman sets on the ECML received payphones. So the TF is either 41041 or 41066.
Mentioning payphones here is one! In the TFs so fitted one luggage rack was removed and as the image above shows the normal split window was replaced by a full height frosted one. I believe this is from TF 41121 (253028), the first set to gain InterCity Executive colours. I've mentioned in an early post that this set gained IC80 seats (as used in the APT) as an experiment, albeit trimmed in what was termed tiger stripe moquette (orange and black horizontal stripes). You can just make out the headrest of the first seating bay that does have a striped moquette. Also, you can just make out the top of the armrest adjacent to the aisle. It starts to curve, which was a feature of the IC80 armrest (see images below) rather than the square end of the IC70 seat. (I thought this book had a picture of the IC80 seats, but it must be in something else I have buried away)
Two pictures here showing the interior of the unique TLFK 40513. The first looks to be a staged publicity shot showing a 'typical' mid-1980s business use of the Executive Saloon; the second is a shot from the interior of the the filming of Terry Wogan interviewing Terry Jones. Unfortunately neither show the conference table that the diagram book image has in, but I assume the layout could be configured based on the client's needs.
So at first glance these are the standard InterCity interiors from the mid-1980s onwards, with dusk pink moquette in First Class and red (officially 'Red Dogger') in Standard Class. However, what these two pictures show are facelifted coaches rather than refurbished ones. What's the difference? Well the first coaches that received InterCity Executive colours retained the original seat squabs. So in First Class you still have the original bulky white fabric covered head rest cushion, whilst in Standard Class the seat squabs still have the slightly rounded headrests of the original seats. When the full refurbishment kicked in First Class seats got a slightly bigger winged headrest, and the headrest cushion was less bulky and trimmed in the same moquette. Also in First Class carpeted side and end panels were introduced - the coach here has white panelling. In Standard Class as well as redesigned seat squabs with a flatter headrest half the seats became airline style increasing the seat count from 72 to 76 in a normal coach. In the photo here you can see the seats are all around tables still (bar the four pairs in the centre either side of the mid-coach partition that would be behind the photographer).
Moving away from HSTs these two images are of Mark 3B FOs. Judging by the embroidered antimacassars in the first picture and the service in the second picture I am guessing these are both the Pullman variant. You can see the IC80 seats (note the curve to the armrest that makes me think the payphone photo is 41121). I'd actually forgotten that the Mark 3Bs had a brown moquette (including the side walls and end panel carpeting), albeit to the same design as the pink used on the iC70 seats as part of the refurbishment of the Mark 2F/3/3A fleets.
This final image has a HST connection because it is an interior photo of either 10200 or 10201 (converted from TRUKs 40519 and 40520). I know it is one of these two coaches because of the low backed seating, which was fitted when initially converted and they were classified as RSMs (Restaurant Buffet Standard (Modular)). The whole concept was branded 'Cuisine 2000', which was to introduce a modular catering concept to the WCML (i.e. various things prepped at catering depots on route and everything loaded in trolleys). The original aim must have been to have the restaurant seating a bit like a Mark 1 RBR, with low backed seats so customers just used them when having a meal. However, the production conversions saw the vehicles classified as RFMs, with 24 First Class seats (IC70 style). Overhead luggage racks were also fitted - note they are not fitted in the RSM. At some point 10200/10201 gained IC70 seats, but I think they remained RSMs until their first works overhaul and officially became RFMs (albeit with a different diagram number).
). Should be OK with copyright as its for "historical and educational purposes" but always give full credit to the publication anyway.