Twisted and straight filigree

This is a sophisticated hot decorative technique, developed by Venetian glass masters between the end of the 15th century and the first half of the 16th century to embellish crystal glass artefacts. This technique uses thin rods of transparent glass (called canne), inside which are inserted threads of opaque (lattimo) or coloured glass.

When the decoration features parallel canes with a straight internal thread, it is called half filigree. The manufacturing process begins with the hot joining of the canes, which are placed side by side and heated in the oven at about 700°C, so that they adhere to each other. Subsequently, the resulting sheet is collected and modelled into a cylindrical shape, then blown and shaped by the master glassmaker according to the desired design.

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