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the firm ceased the public retailing of scientific instruments sometime around the late 1960’s and continued with a focus on the aviation industry in numerous guises until its eventual liquidation in the year 2000
Circa 1830
The standard double Vernier version was retailed at £6
and describes the method of construction
5 inch telescope with attached glass level below
Victorian Black Glass Artificial Horizon Set by John Lilley & Son London Antique Razor Set the firm ceased the publicFor sale, an exquisite maritime black glass artificial horizon set by John Lilley & Son, London The base of the instrument takes the form of a brass rectangular tray which is inset with a mirror finished black glass plate with bevelled edge. The plate three pointed feet which are clamped to each side and screw threaded in order that they can be adjusted to a level position. The plate is accompanied by a large brass spirit level with a flattened base
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