A rare ivory clinometer rule by J Fenn 105 Newgate Street, London. Worked at this address 1839-1842, in good overall condition, noting compass is missing, thermometer intact but not measuring, no liquid in levelling tube, minor age cracks, nickel silver mounts. More photos available
This item is only for sale within European Union due to ivory bans elsewhere.
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.