A 1951 ‘Quad Royal’ poster map of the Underground by Beck

A poster map of the London Underground, still designed by Beck despite his having resigned from London Transport to teach at the London School of Printing and Graphic Arts. For this version, nearly twenty years after the first edition of 1933, he has simplified the design by removing all the proposed extensions (Northern and Bakerloo Lines); he has added a bend in the Thames to bring Richmond to the riverside; and he has added a reference grid with an index of stations. To the east the last eight stations are only listed.