Ah, I bet mine is missing the pads between the three adjustment screws and the back of the mirror. There's about 1/4" between the top of the mirror and the underside of the two metal retaining clips which would be explained by the missing pads. Ill make some pads.
The missing pads might be the reason the scope is in such good condition...it didn't work very well so it h
just got put away.
There are two felt pads, one on the mirror and one on the floor, I assumed they were alignment devices.