We begin with:
From top to bottom: Holborn Station (the whole building not just the station); 57-58
From top to bottom: Africa House; Aviation House (both in Kingsway); and Victoria House (front and side views)
From top to bottom: Summit House,
I managed to get two spot on, two at least 50 years out and the remainder only a few years out.
I will post the answers in a couple of days - why not have a go (and no cheating!)
I will say at least one of the answers is somewhere in my journal!All photos copyright Orlicat