An interesting set of optometrist lenses from first half 20th Century. This graduated set of concave & convex lenses make an interesting conversation piece or commercial opticians shop display. Set in a bespoke fitted leather case which is in good clean condition for age. All pieces appear to be present.PLEASE NOTE PAPER CHARTS ARE FOR ILLUSTRATION ONLY AND DO NOT FORM PART OF THE OFFER. Case Dimensions: 21 inches x 12 inches x 4 inches (53.5cm x 30.5 cm x 10cm).