Some of the following are unidentified - do you have any clues? Please contact me.
Lower & Upper Decks by Roe.
Mike Averill has kindly helped identify these:
The lower deck is truly a Roe design and is very likely a Leyland PD2/20 of 1957 ("No. 838"). Registration YWA 838 and one of a batch of 40 (821 - 860). The moquette is the same as in the 1959 Sheffield Bridgemaster 523.
The upper deck is assumed to have been built by Roe as "Roe" is stamped on the back of the original print. However it is more likely a PRV design as the finishing strip above the windows continues into the rear dome at the same height, unlike those of Roe's designs that stepped down. The date of the design strongly suggests the late 1940's due to the sliding window ventilators. Pre-war, it seems that almost all buses had wind-down (often half drop) windows, whereas post-war, 1947 onwards, sliding vents were more prominent. At first the sliders had heavy bars underneath whereas, by about 1950, much neater metal frames had been introduced.
Lower Decks
London Transport RT. An early Park Royal example of an AEC Regent taken in
the later part of 1947.
The window arrangement here suggests that this bus was probably destined for a hot
climate. And it seems to me to be the interior of the Guy Arab IV destined for Kenya Bus Services
Nairobi (see possible upper deck below) (please
also see the Guy Arab
page).
The sign above the number 205 says "Do Not Spit". The front window
arrangement also resembles the Guy Arab. Has anyone any clues?

John Kaye comments that these are
Roe photographs (R881 in the lower right corner of the first) and that they bear
a strong resemblance to the interior of VKH 674 and could possibly be the
interior of one of the batch of Leylands for East Yorkshire (VKH 668-673).
Can you add to this?
Upper Decks
This interior is almost certainly the
upper saloon of the Front Entrance Routemaster and probably taken as one of the set
of first photographs outside AEC's premises (please see FRM
page). The interior is definitely derived from the Routemaster as
both the seating material and the sealed front
windows (with air vents above) testify. Also
the side windows are sealed as per the FRM, and lastly there is the front
entrance staircase.
I am grateful to Les Gale for the above analysis.
This is the upper deck of a
Crossley built prototype Bridgemaster (Registration Number 9 JML) to PRV design (circa 1956).
I am sure that this is the upper deck of the same Guy Arab IV (see
above) destined for Kenya Bus Services
Nairobi (please also see the Guy Arab
page).
Single Decks
I have been advised by Basil
Hancock that this
photograph
is of an AEC Regal IV prototype UMP227, that spent some time
with London Transport and is now preserved at Cobham by the London Bus
Preservation Group.
Or identify this? See Lloyd
Penfold's comments on the drivers cabs below!
Doors, Door Gear & Switches
I am grateful to Les Gale, Doug Ely and Dan Evans for the following analysis.
These photographs are almost certainly of an LT Daimler DMS, originally thought to be circa 1972. However, it has been suggested by Doug that the photos show doors belonging to a DMS from the "P" or "R" registered deliveries of 1976/77. The giveaway being that the original DMS doors were four leaf, folding away in pairs from the centre to each side, thus giving a door mounted hand rail to passengers boarding on either side. The later two leaf variety (shown here) folded from the front back against the windscreen. This door arrangement could be vicious to the unwary traveler more used to putting a foot on the step as the four leaf variety opened!
Dan Evans however further suggests that the bus is definitely one of two 1972 experimental 2-piece door vehicles DMS463-467. He comments that the Peters doors (shown) match the original 4-piece design with a (very) narrow rubber nosing on the exit door. The 2-piece Deans doors, from 1976 onwards, had a different design to the windows and 3-inch nosing rubber on each leaf.
The front entrance showing the Self-Service
Auto Fare Collecting (AFC) Machine just visible to the left. Notice too
the seating
capacity sign for both decks. These AFC
machines were also used on some Red Arrow and LT Merlin Swift Single Deckers.
The front (entrance only) doors on the same DMS (note the licence disc holder -
bottom right - visible through windscreen and the AFC centre gangway
partition - bottom left).

The centre (exit only) doors probably on the same DMS (hence the NO ENTRY sign).

The door gear for the entry and exit doors respectively.
The following is unidentified - but I think this and the staircase below might be something to do with MCW and South Wales - do you have any clues? Please contact me.
Staircase
Drivers Cabins
Can
anyone shed more light on this?

Lloyd
Penfold points out that the driver's cab shown in these
two pictures are the same. More than probably, a post WW2
Leyland (or very likely BUT - a sales branding of AEC and Leyland products in
the '50's and '60's) single-deck trolleybus. It clearly has two sets
of powered doors (buttons just ahead of the direction indicator switch) and from
the style of window surround it may well be the same vehicle as the last of the
single deck interiors shown above.
In any case, he says there are many matching features between the cabins below and the single deck above to the Saunders-Roe bodied BUT (Leyland) RETB1 seen in Auckland NZ. The split and angled driver's screen; half drop opening windows in the correct places; the lower-than-the-windows entrance door tops (the emergency handles to open the doors are just visible high up in one of the pictures below); even the large rectangular interior mirror visible at the top of the nearside windscreen and its two support arms match the Saunders-Roe bodies.
Lloyd has seen Saunders-Roe bodies with matching interior window surrounds, including a now-preserved double decker lightweight experimental bus that ran for Birmingham Corporation built at the approximately the same period and believes that these pictures are of trolleybuses bound for New Zealand.
Paul Gourley confirms: The photos are of a SARO body on a B.U.T RETB1/2 chassis and I believe this is number 60 that was fully built whereas most of the others were delivered in kit form to New Zealand to be constructed by the Auckland Transport Board. The Museum of Transport and Technolgy in Auckland are working on number 85 (of the same batch). Forty were supplied and given numbers 60 to 99.
Can anyone shed more light on this?