A good early 19th Century case mounted Nairne pattern compound monocular Chest Microscope, unsigned,

A good early 19th Century case mounted Nairne pattern compound monocular Chest Microscope, unsigned, the barrel with sliding eye piece on a square section pillar, the base of the pillar with concave mirror and attached to the case, the microscope tilts forward by way of a hinged section, other case folding down for use, the mahogany case fitted with various lenses, ivory sliders, eye pieces etc, 33cms (13"). (1)