http://transits.mhs.ox.ac.uk/contribute/record.php?recnum=5&compiled_name=MuseumBoerhaave&contributor_id=56

and then there are 'these'...go figure:

 

http://transits.mhs.ox.ac.uk/contribute/record.php?recnum=3&link_id=&compiled_name=MuseumBoerhaave&size=big&searchterm=&view=&contributor_id=56

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