The text at the bottom looks like one of the weird phototypesetting variants of Gill Sans floating around at this time with a boosted x-height and tightened spacing. (I believe Chantilly Serial may be a descendant of these.)
Or it’s just Extra Bold.
Oops. I had clearly excised the horror from my memory.
Contributed by Indra Kupferschmid
Photo(s) by “Kunst am Bau / DDR” on Flickr.
Photo(s) on Flickr.
Contributed by Stephen Coles
Contributed by Briefcase Type Foundry
Photo(s) by Stephen Coles on Flickr.