Have a look at this one - it dates from the early '70s. A mate of mine restored this a couple of years ago.
Any of you US guys might be aware of an old kit car over there known as the 'Sterling' - a VW based sportscar. It was designed over here by a guy called Richard Oakes and was known as the Nova. At the same time he produced this little known trailer tent known as the Novagetaway.
Similar in concept to a teardrop ( i.e: 2 berth bed & kitchen ) but in the form of a lowline trailer, the lid pops up bringing the canvas sides & door with it.
Have a look. http://myweb.tiscali.co.uk/swizzjnr/index/page7.html
Swizz...