Yesterday I picked up a very nice winter project!
After looking for such a frame or more than a year, I finally managed to buy one. This one is from 1993 and will be fitted with Dura Ace 7400 group.
Also I have found a complete Shimano 6207 group for my 1985 Gazelle AB, so that frame will be refitted this winter as well.
The Van Tuyl has been put aside since the front derailleur bracket has somehow been bent in such a way I can't get the derailleur on it properly.