Marbles, Without a print in front of me I dont remember the contact. But you should have a contact that keeps you from seeing your leveling contacts when you take off....... And as far as rebuilding IBM relays between Dover and US equipment I wish I had a buck for each one I have rebuilt. Another trick I learned is the plate on top of the relay can be loosened and adjusted to add x-tra tension to the NC contacts. And will make all kinds of problems go away.