Great little vintage fiberglass clamshell trailer!  Four season camping, foam insulation, nice headroom, everything works.  These are very uncommon as they only made them for a few years.  Approximate dry weight is 3400#.  You can fit this little trailer anywhere, turns on a dime, 20' long total.  We camp exclusively in state park campgrounds and love the maneuverability of this trailer, while having a fulltime bedroom and not requiring any hookups.

Axles have been flipped and blocked for newer higher trucks.
Uncommon dual axles. (most trailers this small are single axle)
Solar panels on roof, 150 watt 30 amp, stays charged indefinitely when dry camping.
Dual deep cycle RV batteries.
Dual propane tanks.
Tires in excellent shape, also has a rear mounted spare.
New tankless on-demand water heater, uses less propane, endless hot water.
Furnace with wall thermostat like your home, new circuit board.
Fulltime queen bed "upstairs", and large U-shaped dinette sitting area (also makes into a bed).
New Fan-Tastic Fan with thermostat to control temps in the summer without hookups. 
Original four burner stove with oven.
Original 3 way refrigerator and freezer.
Dual stainless sinks.
Large full bathroom with shower and vanity.
Pioneer stereo system with external speakers.
New upholstery with matching ottoman w/ storage.
Complete set of keys.
Large fresh, grey, and black water tanks. (black water tank has built in sprayer)
Ladder and roof storage.  (the roof was sealed around all fittings two years ago)

If you ever have wanted one of these, consider the fact that vintage Bigfoots sat very low and will almost always have to be raised.  It cost us $1700 to raise this trailer professionally, and it is already done.

We would keep it, but we bought a 100 year old log cabin and have switched our priorities.  Need the $ for some work on the cabin.