Projection, Lucernal, Compound and Simple Microscope by George Adams Jr., ca.1790.
Very rare late 18th century mahogany wood box, with compound microscope and many accessories, objectives and specimens, designed to be combined with the famous Adams lucernal microscope. This optical compendium is unsigned, but was certainly made by George Adams Junior. It contains many elements and accessories of a lucernal microscope, and a compound microscope. Ferdinand III Grand Duke of Tuscany (1769-1824), Holy Roman Emperor, King of Hungary, and Bohemia from 1790 to 1792, and Archduke of Austria and Grand Duke of Tuscany from 1765 to 1790, personally donated a similar set to the Museo di Fisica e Storia Naturale of Florence in 1791.
The compound microscope is mounted on a square-sectioned pillar fitted with a tripod. The illumination mirror is hinged near the base and above it travels the stage. The body-tube is attached to the top of pillar and its eyepiece is fitted with two converging lenses and a field lens. The instrument, which fits into the same box as the lucernal microscope, also has an objective.