A good and complex two foot Ivory Folding Presentation Rule with Silver Mounts in original case, presented by John Reid to A and G Cunningham, 1879. The scales arranged by Robert Hawthorne, Civil Engineer, Newcastle on Tyne, but no makers name.
One small piece of damage by the main hinge next to the slide
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.