An unsigned diamond scale with almost complete set of carat weights, 64/32/16/8/4/2/1 but 3 carat weight missing. Good cut steel beam with silver coloured metal pans and brass tweezers.
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.