Acid Etching
The vase is protected with bitume de Judee. The part that is left uncovered is eaten by the hydrofluoric acid. The acid will give a depth to the vase. This process can be repeated. Most of the time the vase is lowered in an acid bath. This was unhealthy for the workmen.
Wheel Carving
A pattern is cut on the vase with the use of a rotating wheel. The difference between acid-etching and wheelcutting is, wheel cutting is done by skilled men and took many hours. Wheelcutting is more refined, more detailed then acid-etching.
Martele
Wheelcutting that looks like a piece had been hammered.
Cabuchons
Applications. Every piece of glass that is applied on the vase while it is still hot. This can be a handle, a band, etc.
Enamel
Painting the vase with glasspowders. After the painting the vase will be heated again, so that the powders become glass as well.
Vitrification
The vase is rolled into glasspowders on a marble table.
Afterwards the vase is heated again.
Intercalair
Between two layers of glass. A pattern with glasspowders is placed on a marble table. Then the vase picks up this pattern. Afterwards the vase is covered with another layer of glass, so the pattern is between two layers.
Marqueterie
Hot pieces of glass are applied on the surface of a a vase to make the decoration. The hot vase was rolled over a marble stone, so that the applied pieces were embedded.
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