If they still have it, the is an old PDP in the Utrecht office of Digital. As far as I can remember (have seen it at least 10 years ago) it's blue, has 3 panels and the centerpanel has a round tube (a scope tube?). There were also a lot of switches on the panels. I believe that the University in Utrecht has a museum of some sort with various computers which they used over the years. You might like to go to the Waterloo square in Amsterdam, every Monday till Friday there is a flea market, and certainly there will be some vintage stuff for sale. Ed