An attractive letter scale by S. Mordan marked for postal rates, Inland letter post not exceeding 4oz 1D, each additional 2oz 1/2D India and colonies 1D per 1/2 oz, postal union 21/2d per 1/2 oz. In good condition of original oak base
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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.