Compound monocular microscope

Compound monocular microscope

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Compound monocular microscope
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Compound monocular microscope, signed by Tolles of the Boston Optical Works, American, circa 1870, bought by Crisp from C. Stodder

The compound microscope was essential to the development of haematology as a discipline. Under the microscope the structure of the blood and marrow were revealed.

This microscope was made by Robert B Tolles (1822-53) of the Boston Op-tical Works whose name is engraved on to the body tube. Tolles formed the Boston Optical Works with Charles Stodder in 1867; the partnership dissolved in 1871. This microscope was sold by Charles Stodder to English lawyer and microscopist Sir Frank Crisp (1843-1919), who collected microscopes and used them in his research.


Microscopy (Wellcome)
Sir Henry Wellcome's Museum Collection
Object Number:
lenses, glass, body tube, brass, limb, brass, stage, brass, pillars, brass and base, iron, enamelled
overall: 470 mm x 170 mm x 197 mm, 6.12 kg
depth: 260mm
height: 464mm
weight: 6.12kg
weight: 13.49236lbs
width: 175mm
width: 200mm
compound microscope
Wellcome Trust (Purchased from Stevens)