My wife and I purchased this couch recently. We're trying to get a firm year on it. It was originally by Gardner and Schumacher out of Detroit.
Looks like a 60's frame that may have been recovered in the late 70's early 80's. Very nice!
I would say late 50's early 60's. Looks in good shape.
Definitely 60s era, some of this stuff was knocking about just after and bled into the 70s. I wrote a blog article on 70s furniture and notices that at the tail end of the 60s there was a lot of this kind of cushion patterning floating around.