'Golden Arrow' Pullman car poster, 1929

The CF du Nord in France introduced the Flèche d’Or in 1926 as an all-first-class Pullman service between Paris and Calais. On 15 May 1929, the Southern Railway introduced the translated equivalent train between London and Dover. 

A European Pullman car used on the Flèche d'Or in France, now in the Mulhouse museum.

The train usually consisted of 10 British Pullman cars, hauled by one of the Southern Railway’s Lord Nelson class locomotives, and took 98 minutes between London and Dover. Ordinary carriages were added in 1931. Similarly the first-class-only ferry, Canterbury, was modified to allow other classes of passenger.