Gilt Metal and Mother of Pearl Bonheur de Jour

• Mother-Of-Pearl - Mother-of-pearl, technical name "nacre", is the inner layer of a sea shell. The iridescent colours and strength of this material were widely used in the nineteenth century as an inlay in jewellery, furniture, (especially papier mache furniture) and musical instruments.
  
  In the early 1900s it was used to make pearl buttons. Mother-of-pearl is a soft material that is easily cut or engraved.
  
  Nowadays it is a by-product of the oyster, freshwater pearl mussel and abalone industries.
• 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

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• desks, style or type - bonheur du jour 51