Once the shape has been made by the glass blower, a spout can be formed by pulling the lip. Additional glass is gathered from the melting pot, and formed into a handle.
Clear handles added after shaping of the blue vase.
This handle is applied before the object is annealed.
Another form of decoration is called threading. A gather of glass is pulled out until it is a narrow stringer. This stringer is then wound around the object, usually at the neck.
Blue glass threads around the neck of a blue vase.
(Photos by the author.)
Look for this additions to glass vessels. They indicate that the object was made by hand and not molded, although handles and threads can be added to molded glass objects after they are removed from the mold and before annealing.
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