A simple pocket microscope, by Banks of London, early 19th c...

Hammer

£300

A simple pocket microscope, by Banks of London, early 19th century, signed and inscribed to the upright 'Banks Invt. 441 Strand, London', the threaded eyepiece over a rack and pinion focus and a single sided mirror, fitted to a baize lined mahogany box with a threaded brass fitting to the top, 10cm long