Continent via Harwich, 1950s?

A RARE and attractive original vintage poster by John Greene for British Railways promoting rail links up the Rhine valley from the ferry port of Hook of Holland, probably dating from the 1950s. 

Size
64cm x 101cm

Condition
Good. Pinholes and minor wear at edges. Colours bright. If you would like to know more please get in touch. 

Background
The text bottom right refers to the two tourist trains that plied the route from the Dutch ferry terminal at the Hook (Hoek) of Holland up the Rhine valley by way of Rotterdam, Eindhoven, Cologne (Köln), Bonn, Coblence (Coblenz), Mayence (Mainz), Mannheim, Carlsruhe and Freiburg to Bâle (Basel) in Switzerland. The work is signed 'Greene' and this is John Greene, who produced several posters for British Railways in the late 1950s and early 1960s. The printer was Jordinson & Co of London and Middlesbrough and the publisher was British Railways Eastern Region.