Cameras and Scientific Instruments

An early 20th century oxidized brass pocket barometer altimeter, the silvered dial detailed 'F. Barker & Son Makers London', case diameter 5.1cm.

An early 20th century gilt brass circular cased travelling barometer altimeter, the silvered dial detailed 'Ross London', diameter 7.9cm, within a leather case.

An early 20th century gilt brass circular pocket barometer altimeter, the silvered dial with outer altitude scale, detailed 'J. Lizars Opticians 101 & 107 Buchanan St Glasgow', diameter 4.9cm, within a leather case.

An early to mid-20th century mahogany cased barograph with lacquered brass mechanism and clockwork recording drum, the hinged cover with brass carrying handle above a glazed front and side panel, the base with single drawer, length 35cm.

A late 20th century Sewills gilt brass cylindrical barograph with mahogany base and Perspex cover, height 12cm.

An early 20th century chrome plated pocket barometer altimeter, the silvered dial inscribed 'J.H. Steward Ltd... London 6373', within a leather travelling case.

A mid-20th century lacquered gilt brass anemometer, the circular silvered dial detailed 'Air Meter to 100,000 feet, Negretti & Zambra London No.2766', height 8.5cm, within a fitted mahogany box, the hinged lid bearing paper label inscribed 'International Inventions Exhibition Awarded Silver Medal...'.

An early 20th century gilt brass and mahogany three-draw telescope, extended length 18cm, with card cylindrical case, together with a brass three-draw telescope, extended length 61cm.

A collection of sliding rules, mostly mid-20th century, the majority boxed.

A Victorian cast iron and brass measuring dial, the 10-inch silvered circular dial with red inches scale and black inner feet scale, inscribed 'George Jennings Stangate London' above 'Jennings & Brewer Patentees', height 55.7cm. Note: George Jennings (1810-1882) was a celebrated English hydraulic and sanitary engineer and plumber, who worked from his Stangate works on the Lambeth Palace Road, London. He invented the first public flush toilet and won numerous awards.

A collection of watchmaker's tools and scientific instruments, including a Star staking tool set, boxed, and an Otis King's patent calculator.

A late 19th century gilt lacquered brass pocket barometer altimeter, the silvered dial inscribed 'M. Pillischer London', case diameter 5cm, with leather case (faults).

A Marconi valve light bulb, detailed 'R 7308', height 9.7cm, on a wood plinth with Perspex dome cover.

A George III nickel plated and satinwood three-draw telescope, detailed 'By The Kings Patent Gregory Wright London', extended length 57cm, with card cylindrical case.

A Victorian brass and leather bound six-draw telescope, detailed 'E. Lennie Edinburgh', extended length 38.1cm.

A Stanley of London black enamelled Abney level and clinometer, leather cased, together with an oxidized brass cylindrical box sextant with silvered scale to 140, hinged magnifying glass and two swing-out colour filters, contained within a leather case.

A 19th century lacquered brass single-draw telescope with sliding covers, extended length 106.8cm.

A gilt brass pocket box sextant by Elliott Brothers, with silvered scale to 140, hinged magnifying glass and two swing-out colour filters, signed 'Elliott Brothers 30 Strand London', diameter 7.7cm, with two leather cases.

A First World War period oxidized brass cased pocket compass, detailed 'No. 71752' and dated '1917', case diameter 5.5cm, leather cased, and another leather case.