Dino Martens (1894-1970) a Vetro Oriente Murano glass vase; circa 1950, the bottle with a band of applied glass petals around the elongated neck, with copper glass and polychrome inclusions including a large star murine, manufactured by Vetreria Aureliano Toso, model 5139.F, label to base. Height 14.17 in., width 7.09 in. Literature: Marc Heiremans, Dino Martens designer muranese del vetro, Arnoldsche, Stuttgart, 1999, p. 163
- 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.
- 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.
- Polychrome - Made or finished in many colours. For furniture, it is used to indicated a painted finish.
- 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.
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