A William IV rosewood library stand, the rectangular top above…

• Pilasters - In furniture a pilaster is a flattened column-like detail
  
  applied to furniture. It is similar to a pilaster in architecture, but it is
  
  typically smaller and less ornate. Pilasters are often used to decorate the
  
  fronts of bookcases, cabinets, and other pieces of furniture. Pilasters can be
  
  made of wood, metal, or other materials. They can be fluted, carved, or plain.
  
  Pilasters are often used to add a touch of elegance and sophistication to
  
  furniture.

• William Iv - William IV was King of the United Kingdom and King of Hanover from 26 June 1830 until his death in 1837, and in English furniture design it represented the brief period between the end of the Regency period, and the beginning of the Victorian period.
• Frieze - An architectural term denoting the flat, shaped or convex horizontal surface of furniture, between the architrave and the cornice, usually found on a cabinet or bookcase, or on desks and tables where it may include drawers, the area between the top and the legs. In ceramics, the term refers to the banding, of usually a repeating pattern, on the rims of plates and vases.
• Plinth - The square or rectangular base of a piece of cabinet furniture, often ornamented with moulding. The plinth may be separate, as in some wardrobes or presses, and act as the support for the carcase. In a false plinth, the moulded boards may be attached directly to the piece. Furniture with a plinth base usually does not have separate feet. The term derives from architecture where it denotes the base of a column or statue.
• Rosewood - A dense timber that varies in shade to very light brown to almost black. When rosewood is cut and sanded the colour of the timber will turn black, and after polishing and exposure to daylight, the surface will gradually lighten over time to light brown with black streaks.
  
  The name comes from the odour emanating from the timber when it is planed, sanded or cut.
  
  Rosewood was very popular for use in Victorian furniture in the second half of the 19th century, and at that time most of the rosewood was imported from Brazil. However it also grows in India and Indonesia.
  
  It is used in the sold for chairs and table legs, but for carcase furniture such as side cabinets and bookcases, and for table tops it is always used as a veneer.
• Provenance - A term used to describe the provable history of an antique or work of art, and thus an additional aid to verifying its authenticity. Provenance can have an inflating effect on the price of an item, particularly if the provenance relates to the early settlement of Australia, a famous person, or royalty. Less significant are previous sales of the item through an auction house or dealer.
• Castors - Wheels, fitted especially to chair legs, couches, tables and some smaller pieces of furniture, to enable them to be easily moved about. The earliest castors were of brass, with shanks fitting into the base of the leg, and the wheels often made of leather. In the late 18th century, brass 'bucket' or 'cup' castors were introduced, either rounded or square, fitting directly over the end of the leg and held in place with screws. The wheels were generally solid brass. Bucket/cup castors continued in use throughout the 19th century and indeed are still made today. In the later 19th century wheels were sometimes made of wood, china, either white or brown, and sometimes of steel.

This item has been included into following indexes:

• bookcases, function or type - four door and library, other timbers 128
• bookcases, material - rosewood 44
• bookcases, period - William IV 39