A 19th Century brass compound monocular microscope, signed on the horse-shoe stand Tho.s Armstrong & Bro, 88 & 90 Deansgate, Manchester, in case - 15in. high; a miniature drum microscope; a Queen & CO slide rotation table; and a Society of Arts pattern compound monocular microscope with accessories in mahogany case - 10 5/8in.high (4)