FATHERS DAY COMING This one of a kind Long Spy Glass makes a great gift for Fathers day. U. S. Navy BU Ships Mark 1 1942 spyglass made by Kollmorogen Optical, it is 31" in length and the optics are in good condition. It comes in the original walnut case with matching ser. # 22743. Insurance is highly recomended, t are not too many left, and in this condition.