Thank you for the information Jim!

I found the stamped VIN today, it is behind the "dog house" on the floor.
It was covered by paint and dirt so pretty hard to find.

The Van was shipped to the Netherlands in 1998, was stored until last august when I bought it.
It is in an original condition, engine, drivetrain, interior all original.
I'm in the process of replacing all brake parts, suspension rubber parts.
Engine runs smooth but has some smoke.

On the side of the Van we found a former owners adress

Electrical Construction
853 Manor Street
phone 393 725
Lancaster PA

I have looked it up on the internet, There is a pizzaria on that adress now.
The phone number is now used by the American Heart Association in Lancaster.

Erik.