ThisVintage Bausch & Lomb Optical Co. monoscope is a 19.5 power optical device designed for detailed viewing of objects. Made in Rochester, New York, U.S.A., this standard monoscope features manual focus and a zoom focal length. With a height ranging from 14"-18", length of 12 1/2", and width of 2 3/4", this unit is lightweight at 3 lbs. 12 oz. It was manufactured by the reputable brand Bausch + Lomb in the United States, making it a reliable and high-quality option for precision viewing.