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Date: |
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Description: | M. P. Tench
Optician,
153, Fleet Street
London
No 2
Par [-]f Declination Variometer
20
131
Telescope from Visual Declinometer ex Greenwich
This telescope would have been used with a visual declination variometer (an instrument for measuring a part of the Earth's magnetic field).
The telescope was taken on an Arctic expedition led by Sir George Nares. It was then used at the Royal Observatory, Greenwich and later at the RGO in the Geomagnetism Unit at Herstmonceux.
It is a 12 inch observing telescope on an adjustable tripod base made of brass. There are three screws for adjusting the base, one for focus and there is a brass azimuth locking screw. The instrument has an object lens cover and a broken eyepiece cover. There is also a detached ivory scale.
AUDIT - look at cat. card/acq. slip - A1976-18(18) written on the object. Label attached to object has A1976-18(20) on it. Two unnumbered parts.
caption: Record Shot - Do not reproduce.
caption: Observing telescope | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Subjects: | Refracting telescope Azimuth Observatory Telescopes telescopes Nares George Strong | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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