A rosewood cased set of drawing instruments by A G Thornton, Manchester 4
A 19th century ebony and brass mounted quill cutter by Rodgers, Sheffield qty
A late 19th century lacquered brass theodolite by Negretti and Zambra, London
An early 20th century lacquered brass theodolite by Thomas Street, London
A 1940s Swiss made theodolite by Kern
A 1920/30s oak cased set of Busch German opticians lens
A National Time Recorder time clock
A late 19th/early 20th century brass microscope by J B Dancer Optician, Manchester
A late 19th century brass microscope by R & J Beck, London
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