An
instrument of great stability for quick, accurate handling. Life time stainless
steel scales verniers and fine achromatic optics that make this a precision
instrument of universal choice for normal experiments and for researches. The
instrument is designed for use in the vertical and horizontal planes. The
vertical guide bar is made of gun-metal and is of a special type. It
rotates on ball centers having bearings and can be clamped in any
position. The cast iron frame which support the vertical guide bar, is
fitted with leveling screws. Range either 50 cm or 100 cm erector tube
which can be screwed.
