Looks like something Altiain built.
http://dallas.craigslist.org/ndf/for/2036695960.htmlTrailer for sale - $250
Small utitlity trailer with lockable sheet metal cover. Cover can be removed for open use. Great for camping, luggage, or PA equipment. Approx. 3 ft. tall inside. About 4 ft. square. Working lights. Because of aging it will need new tires before it sees much use. No title or registration. I will provide a bill of sale. Cash or Paypal.
Thanks for looking
Nice little trailer. Easy to register it as home built. If it has a serial number I would check with the local police before buying to ensure it was not stolen.