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Filar micrometer

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Inventory Number: 
AST05
AST05

The micrometer goes with 6 eyepiece lenses for various magnifications. Fixed on a telescope it is used to measure angular distances.
L. Casella provided astronomical instruments to the British Navy during the second half of the 19th c.

Data
Date: 
1860 (c.)
Origin: 
National Observatory of Athens
Location: 
National Observatory of Athens
Maker: 
Casella, L.
Dimensions: 
Length : 24cm, Width : 18cm, Height : 5cm

Copyright National Hellenic Research Foundation - National Observatory of Athens