"Universal" microscope, by Smith, Beck & Beck, serial no. 3308, London, 1850-1860 "Universal" microscope 1850-1860
Binocular microscope by R. and J. Beck, London, serial no. 4857, circa 1864, owned by Dame Lucy Aldrich-Blake (1865-1925) Binocular microscope, box and components 1862-1866
Binocular microscope with body tubes separable by turning a single screw, by Nachet and Son, 17 rue St. Severin, Paris, France, 1850-1875. Binocular microscope with body tubes separable by turning a single screw 1850-1875
Microscope by Andrew Pritchard, 162 Fleet Street, London, England, 1825-1850. Microscope by Andrew Pritchard 1825-1850
Compound monocular microscope in glass fronted case with box of accessories, by M. Pillischer, English, 1855-1865 Compound monocular microscope in glass fronted case with box of accessories 1855-1865