Winged Maiden Clock by Rousseau, 19th Century

• Pendulum - The pendulum was discovered around 1602 by Galileo Galilei, and was adopted for time keeping by the Dutch mathematician and natural philosopher, Christiaan Huygens, who excelled in astronomy, physics, and horology.
  
  The pendulum comprises a metal rod usually of brass or steel with a metal disk, known as a bob, at the end. The movement of the pendulum is driven by weights or a spring, and as a pendulum swings in a regular arc, it was found accuracy could be controlled to within a few seconds a week.
  
  Timekeeping can be adjusted by changing the height of the bob on the rod, making the pendulum either swing slower or faster.
  
  The disadvantage of the pendulum was that changes in temperature also changed the length of the pendulum, interfering with the accuracy of the clock, and so in the 18th century two types of mercurial pendulums were invented which countered the movement in the steel rod.
  
  The pendulum was the world's most accurate timekeeping technology until the invention of the quartz clock, regulated by a quartz crystal, in 1927.
• Cupid Motif - The Cupid motif, which features the Roman god of love and desire, Cupid, was a popular decorative element in classical ornamentation. Cupid was often depicted as a winged, naked baby with a bow and arrow, and was often used to symbolize love and desire.
  
  In classical art and architecture, Cupid motifs were often used as decorative elements on furniture, such as on the legs of chairs and tables, as well as on architectural elements such as friezes and pediments. They were also used as decorative elements in frescoes, mosaics, and other forms of art.
  
  During the Renaissance, Cupid motifs were often incorporated into the decoration of palaces, churches and other grand buildings, as they were seen as symbols of love and fertility. Cupid motifs were also commonly used in the decorative arts of the Baroque period, often appearing in the form of putti, which are small winged cherub figures.
  
  In addition to their decorative use, Cupid motifs were also believed to hold symbolic meaning, as they were thought to evoke feelings of love, desire, and fertility.
• Cartouche - An ornamental panel in the form of of a shield, oval or rectangular scroll with curling edges. It may be carved into the back of a chair or the top of a sideboard, or present on a piece of silver or jewellery, and contain the initials of the original owner, heraldic symbols, or some other inscription, such as the details of a presentation.
  
  In ceramics the term defines the central area of a vase or similar with a decorative border in one of the shapes above, into which a decorative scene or figures have been painted.
• Spelter - Spelter was the name given to an alloy of zinc and brass or copper used in the 19th century for statuary and lighting. It is a brittle bluish-white metal. It was used as a cheap replacement for bronze, but being brittle easily breaks and can't be repaired. When finished it can often be mistaken for bronze, but if discreet a scratch on the base displays shows a greyish colour, the metal is spelter, if a golden colour the metal is most likely bronze.
• Incised - A record of a name, date or inscription, or a decoration scratched into a surface, usually of a glass or ceramic item with a blunt instrument to make a coarse indentation. Compare with engraving where the surface is cut with a sharp instrument such as a metal needle or rotating tool to achieve a fine indentation.
• Foliate - Decorated with leaves or leaf-like forms.

This item has been included into following indexes:

• clocks, type - figural 706