Atelier Dove Vase by Bertil Vallien

• Inclusions - Inclusions in glass objects refer to small, often irregularly shaped particles or bubbles that are trapped within the glass during the manufacturing process. These inclusions can be intentional or unintentional, and can range in size, shape, and composition.
  
  Intentional inclusions are often added to the glass for decorative purposes, and can include materials such as colored glass, metallic foils, or even small mementos like photographs or other objects. These intentional inclusions are typically added to the glass while it is still in a molten or semi-molten state and are then moulded or blown into the final shape of the object.
  
  Unintentional inclusions, on the other hand, are typically the result of impurities or air bubbles that become trapped within the glass during the manufacturing process. These inclusions can be seen as small specks or bubbles within the glass, and can sometimes be a sign of poor quality control during production.
  
  While intentional inclusions can be a desirable feature of some glass objects, unintentional inclusions can sometimes be seen as a defect, and can reduce the value of a piece. However, in some cases, certain types of unintentional inclusions can actually increase the value of a piece, such as with antique glass that contains bubbles or other imperfections that are characteristic of the time period in which it was made.
• 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.
• Murrine - A murrine is created by building up a cane or rod of glass, by plunging the rod into a coloured glass, and then into a shaped dip mould, and repeating this procedure using different coloured glasses to build up a variety of layers. When the dipping is complete a longer cane is created by stretching the glass, and once cooled, can be cut, and the pattern will be revealed in the cross-section.
• Atelier - Atelier (French for "workshop"), in English usuage describes the workshop of an artist in the fine or decorative arts, where the artist and a number of assistants, students and apprentices worked together producing pieces that went out in the artists name. This was the standard practice for European artists from the Middle Ages to the 18th or 19th century

This item has been included into following indexes:

• Kosta Boda (Kosta Glasbruck, Sweden) - vases 291
• Vallien, Bertil (Sweden) - Kosta Boda glass 141