W. Watson & Sons "Service" Laboratory Microscope (1939) – Complete Scientific Set in Original Mahogany Case An exceptional W. Watson & Sons "Service" monocular laboratory microscope, manufactured in London, England and precisely dated to 1939 by serial number 66905. Produced on the eve of the Second World War, this sought-after professional instrument represents the outstanding craftsmanship for which Watson microscopes became renowned worldwide. Supplied in its original mahogany transport case with dovetail joints, original working key and the original Watson magnification chart dated 21 December 1939, this is a remarkably complete collector's set. The case also retains its original Watson British Microscope transfer. The microscope is fitted with precision optics including: Reichert Wien 10x eyepiece 2x Additional eyepiece (oa 5x) Separate chrome-plated triple revolving nosepiece The coarse and fine focusing mechanisms operate smoothly, while the rack-and-pinion adjustment, mirror and condenser are all present. The optics are bright, clean and clear. The glossy black enamel, brass fittings and mahogany case have been exceptionally well preserved, displaying only minor age-related wear. A beautiful and highly decorative scientific instrument that is equally suitable for a collection, museum display or sophisticated interior. During the first half of the 20th century, W. Watson & Sons Ltd. ranked among Britain's leading manufacturers of laboratory microscopes, supplying universities, hospitals, research laboratories and scientific institutions throughout the British Empire. Complete examples with their original fitted case, accessories and documented 1939 dating are increasingly difficult to find. Dimensions microscope as showed: approx. 40 × 14 × 20 cm (h × w × d) Weight microscope: approx. 5.95 kg Dimensions mahogany case: approx. 36.5 × 23.5 × 24.5 cm (h × w × d) Total weight: approx. 11 kg In excellent original condition with only light signs of age and use. Please study the photographs carefully, as they form an integral part of the description.