Biedermeier Birch and Mahogany Architectural Secrétaire Abattant

• Mahogany - Mahogany is a dense, close grained red-coloured timber from the West Indies and Central America. It was first imported into Europe in the the early 18th century and its use continued through the 19th century. It was popular for furniture making because of its strength, the wide boards available, the distinctive grain on some boards, termed flame mahogany and the rich warm colour of the timber when it was polished.. The "flame" was produced where a limb grew out from the trunk of the tree, and this timber was usually sliced into veneers for feature panels on doors, backs and cornices.
  
  Some terms used to describe mahogany relate to the country from which it originally came, such as "Cuban" mahogany, "Honduras" mahogany etc. However unless the wood has been tested the names assigned are more a selling feature, rather than a true indication of the timber's origin.
• Column - An architectural feature sometimes used for decorative effect and sometimes as part of the supporting construction. Columns should generally taper slightly towards the top. They may be plain or decorated with carving, fluting or reeding. Columns may be fully rounded or, more commonly, half-rounded and attached with glue, screws or pins to the outer stiles of doors, or the facing uprights on cabinets and bureaux.
• Birch - Birch is a Northern Hemisphere hardwood, closely related to the beech/oak family, and was a timber popular with 18th century craftsmen. Because of the blonde-golden colour of the grain when polished and its close grain, as a veneer it is often used as a substitute for satinwood where cost savings are required. From the late 18th century cabinetmakers in Russia and Eastern Europe used it in the solid for chairs and other furniture.
  
  Karelian birch is birch with a burr grain that resembles marble, from the Karelia region between Finland and Russia. Because only 30% to 40% of seeds result in trees with Karelian birch features, and the fact that it is very slow growing, the timber is very expensive.
• Fall Front - Furniture with a hinged flap, usually associated with desks and secretaires, that opens or 'falls' to provide a flat writing surface. The flap may be supported by chains or brass quadrants and rest on wooden supports or runners, known as lopers, that pull out from a recess in either side of the piece. The interior of a fall-front desk is usually fitted with small drawers and pigeonholes.
• Inlay - Decorative patterns inserted into the main body of a piece of furniture, generally in wood of contrasting colour and grain, though brass, ivory, ebony, shell and sometimes horn have been used. Inlay may consist of a panel of well figured timber inset into a cabinet door front, geometric patterns, or complex and stylized designs of flowers, swags of foliage, fruits and other motifs. As a general rule, in pieces where the carcase is constructed in the solid, the inlay is relatively simple such as stringing, cross banding and herringbone banding. Where more elaborate and decorative work was required veneer was used. Inlay has been fashionable from at least the latter half of the 17th century, when a variety of elaborate forms were developed
• Parquetry - Parquetry is inlay laid in geometric patterns, the contrast being achieved by the opposing angles of the grain and veneers. The herringbone pattern is the most commonly used in flooring, but this is almost never seen in furniture - the patterns used are more complex and unlike flooring, can include several different varieties of timber.
• Marquetry - In marquetry inlay, contrasting woods, and other materials such as ivory, shell and metal are inlaid either as panels or in a single continuous sheet over the surface of the piece. The design may be straightforward, such as a shell pattern or a basket of flowers, or it may be infinitely complex, with swirling tendrils of leaves, flowers and foliage, such as one finds, for example, in the "seaweed" patterns on longcase clocks of the William and Mary and Queen Anne periods.
• Veneers - Veneers are thin sheets of well-figured timber that are glued under pressure to the surface of a cheaper timber for decorative effect, and then used in the making of carcase furniture.
  
  Early veneers were saw-cut so were relatively thick, (up to 2 mm) but is was realised that saw cutting was wasteful, as timber to the equivilent of the thickness of the saw was lot on each cut.
  
  A more efficient method was devised to slice the timber, either horizontally with a knife, or in a rotary lathe.
  
  Flame veneer, commonly found in mahogany or cedar furniture, is cut from the junction of the branches and main trunk. So-called fiddleback veneers, where the grain is crossed by a series of pronounced darker lines, is usually cut from the outer sections of the tree trunk.
  
  During the 17th and 18th centuries, and in much of the walnut marquetry furniture made during the latter part of the 19th century, the veneer was laid in quarters, each of the same grain, so that one half of the surface was the mirror image of the other.
  
  The use of veneer allows many other decorative effects to be employed, including stringing, feather banding, cross banding, and inlaid decorative panels in the piece. The carcase over which veneer is laid is usually of cheaper timber such as pine, oak or, sometimes in Australia during the first half of the 19th century, red cedar.
  
  The important thing to remember about veneers is that prior to about 1850 they were cut by hand, and were consequently quite thick - ranging up to about 2mm deep.
  
  From the mid-19th century veneers were cut by machines and were almost wafer-thin. This is a critical point when trying to judge the approximate age of veneered furniture.
• 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.
• Dentil Moulding - An architectural ornamental feature found on furniture, usually directly beneath the upper mouldings on a cornice. The timber is cut in a series of deep rectangular sections, alternatively raised and flat, like the crenellation on a castle battlement. In appearance not unlike a row of small teeth. From the latin "dens", teeth. Most commonly seen on bookcases, chests and cabinets, and less frequently on desks and wardrobes.

This item has been included into following indexes:

• desks, period or age - Georgian 135