Bausch & Lomb Magna-Rule Bar Magnifier
10" Length x - Acrylic
Magna-Rule Magnifier lies flat on the page, doubling the height of letters while magnifying two lines of type at a time. Made of acrylic. 10" overall length offers an 8" long scale in both inches and centimeters. Magnifier is useful for tabulated data and can serve as a linear guide.