Good Guys Die Young

THE GOOD DIE YOUNG (1954)
In this film, there is a distinctive archway across the road by the building starring as the post office which Laurence Harvey et al. try to rob.

Opposite the "post office" is the building starring as the pub where the four conspirators meet. (No doubt the pub interior is a set.) I'm sure I've seen the archway in at least one other B&W British film of the forties or fifties.

Is it a real archway (perhaps now demolished) or was that also a set? If real, where was it?

Many thanks for any ideas you may have. ~ John Muhlhaus