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Scientific Instrument - cased theodolite, numbered 29266 by W.F Stanley & Co of Holborn (label to the inside of the lid numbered to correspond with incised number to the side of the theodolite). Other items in the lot to include a mahogany box, other early 20th century diamond inlaid boxes, writing slope (partial) small bag watch repair tools, mainly modern. (qty)
A Surveyor's Theodolite By Stanley & A , greay, brass, in G but well-used condition, optics G, some light fungus present, in maker's case, together with a Cooke, Troughton, & Simms monocular compound microscope, black, body G-VG, with three objectives: one marked '4mm, N.A 0.65', one marked, '16mm N.A. 0.28', & the third marked 'Oil-Immersion N.A. 1.3' in maker's case,
W F Stanley cased theodolite with additional lenses and fitting, label to the inside of the door reads 'Made by W. F Stanley, Optical, Philosophical, and Mathematical Instrument Manufacturer' At present, there is no condition report prepared for this lot, this in no way indicates a good condition, please contact the saleroom for a condition report.
A military theodolite, having two silvered semi-circular scales, the focusing lense with rack and pinion action, with three spirit levels, on a circular base and adjustable brass feet, with War Department mark by Cooke & Sons York, numbered 180, housed in a mahogany case, w.37, d.31, h.36cm.
A Rare Met Office Pilot Balloon Slide Rule, English, c.1940, marked 'JAMES FARROW LONDON' and marked at the top 'PILOT BALLOON SLIDE RULE MARK 1' and marked with a met office logo and number 820/41, constructed of polished mahogany with applied white celluloid scales with 3 brass slides in a later fitted case The Pilot Baalloon Slide Rule: originally used by the Meteorological Office to calculate the wind velocity from theodolite readings made with pilot-balloon observations.

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2516 item(s)/page