Satsuma Studio Vase with Enamel and Gilding Decoration

• Overglaze on Porcelain - Overglaze decoration on porcelain refers to a decorative technique where designs are painted onto a fired and glazed porcelain surface, and then fired again at a lower temperature to fuse the decorative design onto the glaze surface. This technique allows for a wide range of colors and intricate designs that would not be possible with underglaze decoration, which is applied before the glaze is fired.
• Oviform /ovoid - The outline loosely resembling the shape of an egg.
• 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.
• Gilding - Gilding is a method of ornamentation whereby a thin sheet of gold metal is applied to items made of wood, leather, ceramics, glass and silver for decorative purposes.
  
  For furniture including mirrors, the sheet of gold is usually applied over a coating of gesso. Gesso is a mixture of plaster of Paris and gypsum mixed with water and then applied to the carved wooden frames of mirrors and picture frames as a base for applying the gold leaf. After numerous coats of gesso have been applied, allowed to dry and then sanded a coat of "bole", a usually red coloured mixture of clay and glue is brushed on and allowed to dry, after which the gold leaf is applied. Over time parts of the gilding will rub off so the base colour can be seen. In water gilding, this was generally a blue colour, while in oil gilding, the under layer was often yellow. In Victorian times, gilders frequently used red as a pigment beneath the gold leaf.
  
  Metal was often gilded by a process known as fire gilding. Gold mixed with mercury was applied and heated, causing the mercury to evaporate, the long-term effect of which was to kill or disable the craftsman or woman from mercury poisoning. The pursuit of beauty has claimed many victims, not the least of which were the artists who made those pieces so highly sought after today.
• Crackles / Cracquelure - In ceramics, crackles may be introduced intentionally during the firing process, as was often the case with Oriental ceramics, and are known as artificial crackles. Natural crackles occur with age, and if the glaze is transparent, may be difficult to detect. Natural crackles may not cover the whole surface of the object and may be uneven in size.

This item has been included into following indexes:

• Japanese ceramics, factories and cities - Kyoto, Kyoyaki and Kyo-yaki wares 93
• Japanese ceramics, item types - other 2,591
• Satsuma (Japan), item type
  • other items 2,099
  • vases 1,419