I'm a new member here, and posting to an old topic. :-)
In 1978, I took this picture of an Airstream 5th wheel. We're from Ohio, and were in TX visiting Bob Gentry, a friend of my dad's. (Bob helped my dad restore his 1938 Buick Special) I was under the impression that Bob built it, but I may be wrong. Hey, I was 13 at the time!
Unfortunately, both my mom and dad have since passed, so I have no one to ask about it. But I found this thread online and thought it might be fun to post my pic. :-)
-Rich
No Airstream at the moment, but I grew up in a 25ft 1973 Land Yacht, and a 31ft 1978 International. WBCCI #8922 back in the '70s and '80s.