Bronze and Marble Louis XVI Style Mantel Clock

• 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.
• Circa - A Latin term meaning 'about', often used in the antique trade to give an approximate date for the piece, usually considered to be five years on either side of the circa year. Thus, circa 1900 means the piece was made about 1900, probably between 1895 and 1905. The expression is sometimes abbreviated to c.1900.
• Ormolu - Ormolu was popular with French craftsmen in the 18th and 19th century for ornamental fittings for furniture, clocks and other decorative items. True ormolu is gilt bronze, that is bronze that has been coated with gold using a mercury amalgam. Due to the health risks associated with using mercury, this method of creating ormolu was discontinued in France in the 1830s. A substitute was developed consisting of about 75% copper and 25% zinc, however it was inferior to the bronze version. It was often lacquered to prevent it tarnishing.
• Movement - The technical name for the workings of a clock or watch, and does not include the dial or case.
• Canted Corners - In decorative arts, especially furniture making, a canted corner refers to a technique where the corner of the piece is angled or "canted" to create a diagonal corner. This is different from a chamfered corner which is a technique where the edges of a corner are cut at an angle, creating a diagonal edge or "bevel" along the corner.
  
  A canted corner is typically used to add visual interest to the item. It can be found in various styles of furniture such as contemporary, Art Deco, or traditional. It is often used to create a sense of movement and dynamism in a piece.
  
  Canting a corner is a more complex technique than chamfering, and it is typically done by tilting the corner of a piece of furniture and then cutting the wood to match the angle. It's a technique that requires precise measurements and a good understanding of angles and geometry, and it is usually done by experienced artisans.
• Bronze - An alloy of copper and tin, traditionally in the proportions of about 9 parts of copper to 1 part of tin.
  
  The discovery of bronze in Western Asia in the 4th century enabled people to create metal objects which were superior to those previoulsy possible because of its strength and hardness, and it has been used throughout the world for weapons, coins, tools, statuary and other decorative items.
  
  It is very fluid in a molten state, and its hardness, strength when set, and non-corrosive properties makes it most suitable for casting sculpture.

This item has been included into following indexes:

• Japy Freres / Japy & Cie (France) - clocks, maker or retailer 154