A set of 28 mainly coloured circular glass samples probably used for clients to choose lenses for sunglasses. In original case and made by Theodore Hamblin Ltd. Dispensing Opticians.
Ask the Dealer
Fletcher Wallis sells objects and books relating to the history of science, medicine and technology from his unit at Admiral Vernon Arcade Portobello Road. He publishes books through Vernier Press, including Antique Medicine Chests, and Corkscrew Patents from 1795. He has been dealing for thirty five years.