Seen on the Mundo Bucado blog.
I don’t think this is Helvetica Condensed, but it is certainly similar. Perhaps one of the many knockoffs of the phototype era.
Contributed by Stephen Coles
Contributed by Gareth Hague
Photo by Stephen Coles on Flickr.
Contributed by TypeTogether
Contributed by Florian Hardwig
Contributed by Indra Kupferschmid
Photo on Flickr.