That would be a 1986 Wolfsburg Edition Vanagon Camper. Vanagon.com has the complete model information here: http://www.vanagon.com/info/years/1986/index.html#1986_vanagon_camper 
It used the base vanagon model for the conversion instead of the GL model, that's why it came with very few options omitting items such as the window trim with the chrome strips. 
It is hollow behind the panel where the light mounts, and there are a couple of cable bundles inside, nothing else. 
For more info on Wolfsburg Edition Vanagon Campers visit my website at http://home.earthlink.net/~tjhannink/ 

Tim Hannink
Winter Park, Florida
Goldibox - 1987 Wolfsburg Edition Westfalia Camper

  ----- Original Message ----- 
  From: Vicki Derrer 
  To: vanagon@GERRY.VANAGON.COM 
  Sent: Thursday, June 21, 2001 6:15 PM
  Subject: Question for Week-ender or Multi-Van Owners

  Hi List, 
      I have two questions about the Vanagon with the pop-top, the bed and the 
  funky little refrigerator but not the sink, refrigerator, stove unit that is 
  in a full camper. It's an 86 with Wolfsburg decals. 
      First, what is the correct name for this vehicle? (I know there have 
  been many threads on this.) 
      Secondly, why is there no "shelf" along the edge of the pop-top inside 
  on the driver's side, like there is on a full camper?  It's such a handy 
  storage space.  What would happen if that long piece of plastic or metal that 
  the light is attached to was cut down into a sort of shelf?  Would it be 
  difficult, or tricky?  It seems to be hollow.  What's behind there, besides 
  the wiring for the light? 
      Hope everyone is camping their hearts out this summer! TIA, Vicki 

[text/html]