Micrometer by Troughton and Simms, used by the 1874 Dutch expedition on Reunion
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Object notes Associations
The director of the Leiden Observatory, Frederik Kaiser, bought this micrometer after Airy in 1858. The micrometer was lent to the 1874 expedition to Reunion.
Troughton & Simms, London, 1858
Museum Boerhaave V6132
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