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Automatic spectroscope by G. and S. Merz (unsigned). Two micrometer slits in a mahogany box, drum of each divided into 100 parts. a) Sorby eyepiece in box by "A Hilger London", with position micrometer; 1 small screw missing, in mahogany box. Spectroscope is heavily constructed, height about 16", diam. of plate 12 1/2", 6 prisms, 3 eyepieces with washleather cover at eye end

Automatic spectroscope by G. and S. Merz (unsigned)

Astronomical object glass lens of 10-inch diameter by G. & S. Merz

1867-1904

Oxford Heliometer, with observer's desk, chair and stool

1840-1848
Star spectroscope by Merz H.O.^.2 from the Hydrographic Department of the Admiralty and used during the British Antarctic Expedition of 1901 with case [Regd Papers 761/08, file 911]

Star spectroscope by Merz H.O.^.2 from the Hydrographic Department of the Admiralty

1890-1900
Refracting telescope of 6 4/16-inch aperture and 74 inch focal length with mahogany veneer wooden tube by G & S Merz, Munich, 1867-1871. Mounted on German equatorial stand with iron pier and clock drive by Thomas Cooke & Sons, York, dated 1871. Acquired in the 1860s by W. G. Lettsom and sold to Sir Cuthbert E Peek in 1882 who employed Charles Grover to make observation at Rousdon Hall, Devon until 1921. Given to the University of Durham in 1925 before returning to Rousden Hall in 1970, now established as All Hallows school.

Refracting telescope of 6 4/16-inch aperture and 74 inch focal length with stand and clock drive

1867-1871