EXTRA LOT
Three 19th-Century brass microscopes: a lacquered-brass monocular microscope by Charles Chevalier Ingénieur Opticien, Palais Royal 163, Paris in the original mahogany case with brass ferrule for mounting; a lacquered-brass student's microscope, unsigned, with articulated bull's-eye attachment, in the original mahogany case; and a lacquered-brass and black enamelled compound monocular microscope by W. Watson & Sons, No.6593, with triple nosepiece in the original mahogany case
Estimate: £300-400
