Jacobite Engraved Wine Glass, English, c. 1750

• 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.
• Engraved Glass - The method of decorating glass by marking the surface with a sharp intrument such as a diamond, metal needle or rotating cutting wheel. As pressure is applied to the surface, best results for engraving are achieved if the glass is of sufficient thickness. In the 19th century etching was used to decorate some table glassware that was too fine to take an engraving tool.
• Jacobite - Wine glasses engraved with mottos and symbols of the Jacobites, who were supporters of Prince Charles Edward Stuart's claim to the English throne.
  
  They were passed around amongst the members of secret groups devoted to the restoration of a Catholic monarch in Scotland and England under the House of Stuart.
  
  The last Jacobite Rebellion ended with Charles Edward Stuart?s defeat at the Battle of Culloden in 1746. His image features on some of the Jacobite glassware.
  
  Genuine examples of Jacobite glassware are dated between 1746 and 1788 but many later copies and forgeries are in circulation.
  
  In November 2012 a Jacobite "Amen" glass, the rarest group of Jacobite glasses sold for £43,000 at auction in Shropshire, England.
• Twist - A rod of glass in which there is one or several threads or tapes of coloured glass, or bubbles of air embedded, which is then twisted to give an attractive appearance. The technique is mostly associated with the stems of Georgian glasses. The technique was in use from about the 1740s to the 1760s.
  
  Collectors have identified over 150 variations of twist decoration. One of the most common is the air twist which as the name implies, has one or more columns of air embedded within the rod. A colour twist has one or more coloured tapes, usually opaque but sometimes translucent. other common types of twist include cable, corkscrew, enamel, gauze, lace, opaque and thread.

This item has been included into following indexes:

• glass, types or items
  • Georgian glasses, engraved or etched decoration 88
  • Georgian twist stem glasses 218
• Jacobite wine glasses - Georgian glass 16