This isn't mine, but it appears to be a NOS aftermarket AC for 84/85 Vanagon.

It goes under the rear seat so it's not as good as a front mounted
unit, but easier to install.  The guy selling it is trying to sell it
to owners of older american cars...hopefully a Vanagon owner can use
it...

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### ICE COLD A/C Unit for any ride!! Hot Rod, Classics, NIB!! ######
- $300 (san jose south)
  Date: 2005-02-17, 7:56PM PST

Up for grabs is a small compact A/C unit complete, made by BEHR inc,
all you need is the pump and condencer brand new in the box!! with
all hoses,high pressure and low,hose ducks and vents the relays, wire
and manual!!. It will fit almost any car under dash or in the trunk
or?? Very small unit. This was originaly made for the rear A/C on a
Volkswagen Vanagon 1984-85 and maybe others. I was going to use it in
a Rambler but thats another story! 300$ and you will have ice cold
A/C in your ride!

contact info is at:  http://www.craigslist.org/sby/car/60230904.html