Filar Micrometer; Cooke, Troughton & Simms; circa 1930; COB026

Name/Title

Filar Micrometer

About this object

Filar micrometer; or cross-hair micrometer in wooden case. Brass construction. Attributed to Troughton & Simms, circa 1930. A note inside the storage case reads: “property of Wellington City Observatory”.

Used with the 9.75" Cooke Refractor during it's time at the Wellington City Observatory (1924-1938), for double star astrometry.

Maker

Cooke, Troughton & Simms

Maker Role

Astronomical Instruments

Date Made

circa 1930

Place Made

England

Object Type

Astronomical Micrometer

Object number

COB026

Rights

All rights reserved

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