Details courtesy of Terry Bye....
Pegasus, a 1951-built Bar Car for the Golden Arrow, had its bar named "The Trianon Bar" as was traditional for this service. These 1951 cars are distinctive in that they were built with rectangular rather than oval small windows. Pegasus subsequently went on to serve in the night sleeper from Euston with her bar renamed "The Nightcap Bar". She was extensively rebuilt in 1999 to conform to current end loading standards.
History of Pullman Car PEGASUS - THE TRIANON BAR Text from Terry Bye
1960 Pullman Schedule Number: 310.
Type of Car as Built: Bar.
Into Pullman Operation: 1951.
Car Builder: Birmingham Railway Carriage amp; Wagon Company. Length amp; Width: 63' - 10" x 8' - 5½".
Tare Weight: 38t.
Type: U.
Route Restriction (S.R.) l.
Seating/Covers: 14.
Livery on Delivery: Umber and Cream.
The Golden Arrow 1951.
1951 brought the Festival of Britain, much of which centred on areas of London. Also the "Golden Arrow" was to see the introduction of seven new cars and three refurbished cars to the train's formation. A further three new cars were introduced in 1952 to the formation. Originally the new cars were to have been built for service on the LNER and work commenced on them in 1938, but the outbreak of the Second World War brought a halt to construction work. All the cars have Gresley bogies, which gives away their LNER heritage.
On cessation of hostilities in 1945, the Pullman Car Company set about the restoration of services as soon as possible, but to do so meant the cars, many of which had been stored since 1939, had to be taken through the works to bring them back to Pullman standard. In 1949 work finally re-commenced on the new cars at the Birmingham Railway Carriage amp; Wagon workshops at Smethwick. The new cars consisted CYGNUS (parlour), HERCULES (parlour), PERSEUS (parlour), PEGASUS THE TRIANON BAR (III) (parlour / bar car), AQUILA (kitchen), ORION (kitchen), CARINA (kitchen). In addition to the new cars, three older cars were rebuilt and refurbished - MINERVA (brake parlour), CAR No.35 (parlour) and CAR No.208 (brake parlour).
The new train formation body sides differed with the installation of a rectangular shape with rounded corners windows to the toilets and pantries. In the past these had been oval.
The interiors no longer had marquetry panelling but each differed in panelling used, the cars became known more for the mosaic toilet floors.
The new cars entered operational service on June 11th, 1951.