Hi I just picked up an intertest 52 bore caliper. It seems to be in pretty good condition and it seems to work internally but I think the face has been rotated or possibly the hand has been turned. I have never seen one of these before and am trying to find out how to reset the tool. I can't seem to find much information on the web about it besides a few for sale on ebay. When I try to measure anything it seems the hundredths hand ends up farther above where it should be. The outer dial is adjustable and locks with a small hex set screw. but I can't figure out how anything else would be adjusted. There are two other hex set screws in the side of the housing and I think they would be for adjustment but I don't want to damage anything by randomly playing with them. I bought this thinking it was little more then a toy but seems much better quality then I originally thought so I would like to get it working. The picture shows how far the hand is off. It should be on zero. It stays off by a consistent amount when measuring different sizes. Can anyone help me out. Thanks