Hauser made several kinds of alignment telescope to aid the setting up of jobs on various kinds of machine tool and machinery installations. This unit, the Type P321, could be supplied with either a No. 4 or No. 5 Morse taper shank, had a magnification of X75 and could be used at distances of 1 to 15 metres (3 to 50 feet)

Hauser "Small Alignment Telescope" Type p332. A smaller version of the Type P321 this unit could be supplied with a Morse 2, 3 or 4 shank, had a magnification of X30 and could be used at distances from 0.5 to 2.5 metres (20" to 100")