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Year/Period
1955-1965
Maker
Country
The Netherlands
Signature
Unsigned
Category
Other optical equipment
Subcategory
Thread counters
Donated by
P.P. de Bruijn, Zeist, the Netherlands
Inventory number
SM 146
See also SM 217.
Cytometer
BLEEKER
1940-1960
Porro prism binocular 6×24
ca. 1950
Spectroscope
ca. 1960
Polarimeter after Laurent
WINKEL
1928-1940