Stand magnifier with 47mm diameter aspheric acrylic lens and black base, (power 20 dioptres, code no.5428), made in England by Combined Optical Industries Ltd., 198-200 Bath Road, Slough, Berks. SL1 4DW Stand magnifier with 47mm diameter aspheric acrylic lens 1950-1959
Magnifying glass, with brass frame and swivel attachment, for compound microscope, by John Marshall, London, England, 1715, by John Marshall, London, England, 1715 Magnifying glass, from Marshall's 1715 compound microscope 1715
Compound (two lenses) magnifying reading glass with painted silver plated brass body, in cardboard black leather covered cylindrical case, unsigned, European, 1800-1899. Compound magnifying reading glass in leather case 1800-1899
Large brass framed hand magnifying glass with 12-inch focal length (305mm), in tooled leather case case (incomplete - lid missing), unsigned, German, 1700-1750. Brass magnifying glass in leather case 1750-1750
Third hand magnifier in red box, by Archibald Young and Son, Edinburgh, Scotland, from doctor’s bag, English, 1925-1935 Third hand magnifier, from doctor’s bag, English, 1925-1935 1925-1935
Rhombohedral calcite crystal, 'Iceland Spar' prism with brass eye piece magnifier (removed from instrument), unsigned, European, 1880-1920. Used to demonstrate the double images produced by the mineral calcite. Rhobomhedral crystal of 'Iceland Spar' with magnifier 1880-1920
Compound (two lenses) magnifying reading glass with painted silver plated brass body, in wooden red leather covered cylindrical case, unsigned, European, 1800-1899. Compound magnifying reading glass in leather case 1800-1899