The Catalogue

Instruments · 1575–1625

Sand-glass set (x4) fitted into an ebony case, inlaid with ivory. Italian, c1600

Victoria and Albert Museum, London

Instruments · 1680–1700

Sundial and case by Michael Butterfield, France, 1680–1700

Victoria and Albert Museum, London

Instruments · 1701–1800

Watch, 1701–1800

Royal Institute for Cultural Heritage

Instruments · 1701–1800

Watch, 1701–1800

Royal Institute for Cultural Heritage

Instruments · 1737–1738

Centre-seconds stop-watch by Jno. Archer, London. (Minute hand missing), London, 1737–1738

Science Museum Group, London

Instruments · 1745–1755

Verge stop-watch with centre seconds hand, by Le Roi, 1745–1755 (see note).

Science Museum Group, London

Instruments · 1750–1800

Single sand glass in four pillared wooden mount. 17 minutes. Horne Type B. Second half of the 18th century

Science Museum Group, London

Instruments · 1763–1829

Chronometer watch by Thomas Earnshaw No.498, with later barrel cover numbered 2829, balance cock and regulator. In 18 ct. gold case hallmarked 1807/8

Science Museum Group, London

Instruments · 1770

Marine timekeeper 'H5' by John Harrison and Son, England, 1770

Science Museum Group, London

Instruments · 1770–1800

Sundial by Andreas Vogler, 1770–1800

Museum of City History Leipzig

Instruments · 1775–1785

Stop watch movement, verge escapement, by J. Stirling, London, England, 1775–1785.

Science Museum Group, London

Instruments · 1780 (case)

Repeating pocket chronometer

British Museum

Instruments · 1783

Astronomical chronometer no. 342 by George Margetts

Royal Museums Greenwich

Instruments · hallmarked 1784

Stop watch movement, verge escapement, by Charles Wilson, London, England, hallmarked 1784.

Science Museum Group, London

Instruments · 1785–1795

Marine chronometer by Eardley Norton

British Museum

Instruments · 1785–1795

Marine chronometer by George Margetts

British Museum

Instruments · hallmarked 1788

Chronometer watch in silver case by John Arnold and Son, London, no.360/661, case. Hall marked 1788

Science Museum Group, London

Instruments · 1790–1800

Marine chronometer by John Arnold

British Museum

Instruments · 1793

Marine chronometer by John Hind

Royal Museums Greenwich

Instruments · 1794

Marine chronometer by James Bullock

British Museum

Instruments · 1794–1874

Sundial by Henry Robert, 1794–1874

Swedish National Museum of Science and Technology

Instruments · 1795–1810

Gold-cased Chronometer watch no.728 made by Thomas Earnshaw, 1795–1810

Science Museum Group, London

Instruments · 1795–1805

Marine chronometer by Abraham Louis Breguet

British Museum

Instruments · 19th century

19th century two-day marine chronometer by Richard Hornby

Gardiner Houlgate (auction house), Corsham