It's a vanity cabinet. The top part looks like it has a mirror with 4 clips (each side) and you are seeing the reflection of the curtains on the opposite wall. The hole in the top is to access the drawer/shelf.
EV-2 build is now complete, (yeah right).
My parents had a 1980 Ford van that we used as a camper when we were growing up. They had a similar set up like that picture. They used to put a plastic tub in the hole that you see and use it as a sink/wash basin. just fill it with water and wash. When you were done just pick up the basin and throw out the water. It worked fine.
2007 Sportsmobile EB-50 4X4 6.0 Diesel with extras