A German dissecting microscope by E. Leitz of Wetzlar, early 20th century, with single x12 lens signed 'Beck London' set to a two piece swivel arm on telescopic rack and pinion foc adjtment, the brass cylindrical upright supporting a rectangular stage with rotating aperture plate and pivoted plane mirror under, on cast U-shaped foot, 15cm high (at lowest foc) in fitted wooden box (at fault)