Small microscope sometimes known as furnace microscope, Folding column rocker balance, Brass cased A. Wilkinson folding guinea scale. Edward Greaves besmear scale with Indian Tolah scale and UK scale in ounces, Hall’s patent scale in case marked with ‘A’ possibly to commemorate death of Prince Albert with silver scale.
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.