The Bass Belle's new paint job ...
imitating one of the Historic Wagons-Lits restaurant cars.

[Compagnie internationale des wagons-lits (lit. International Sleeping-Car Company)]

LMS 4714 Theatrical Scenery Truck built 1925 aka the "Bass Belle" ie a bar / observation car.
www.cs.rhrp.org.uk/se/CarriageInfo.asp?Ref=667