Example tags/facts

Merz & Son 7 1/4-inch astronomical lens, used at Sydney Observatory.

Astronomical lens, 7 1/4-inch, brass / glass, made by Merz and Son, Munich, Germany, 1860-1861, used at Sydney Observatory, Sydney, New South Wales, Australia Circular telescope lens in a brass casing, lens secured to the casing with 3 screws, 5 screw holes in the projecting outer rim. Called an objective glass lens, the lens has a focal length of 315cm (10 feet 4 inches). Cited in reference to Observatory stock number 41, 'Old Astrograph'.

View object on the British Library on Flickr Commons site (opens in new window).

(Accession num: H10187)

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Tags

Astronomy, lens, optical, telescope, astronomical lens, Sydney, Merz, Merz & Son, observatory, glass, circular, round, sydney, glass, lens, observatory, astronomy, lens, glass, circular, metal, label, lens, glass, brass, astronomy, lens, brass, glass, lens, label, lens, observatory, copper, glass, tag, Glass

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