Designed to give maximum accuracy. Consists of a heavy cast iron base fitted with three leveling screws. Horizontal or vertical scales of brass. The cast iron base is fitted with leveling screws with the top duly machined over which slides a metal carriage. The slide can be clamped at any position by means of clamping screw.A vertical slide operating in a similar way is fitted on the horizontal carriage. Achromatic lenses have been used. Slides travel 210 mm horizontally and 160 mm vertically. Eyepiece:- 10x, FL:50mm. Supplied in a wooden polished cabinet.