A Valentin knife, English, c 1840.
2 5 c m
actual image size: 32cm x 17cm

A Valentin knife, English, c 1840.

© Science Museum / Science & Society Picture Library


Manufactured from nickel plated steel, with double blades and a sliding adjuster. Valentin knives were used to cut very thin slices of tisue for microscopic examination. They were named after Gabriel Gustav Valentin (1810-1883) of Bern, Switzerland, who by 1838 had observed the proces of cell division.

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