Many techniques may be applied to glass objects to produce different types of decoration, both internal and external. We will mention here some principal types of decorations.
Internal decoration
Cased. When one layer of glass is applied over another, or when three or more layers are fused together and then outer layer or layers cut away (cameo).
Simple coloured tint. The glass is mixed with a metallic oxide while still in powder form.
Latticinio. Clear glass embedded with white glass threads giving the appearance of spiral fluting. The threads are woven into the semi-molten metal.
Lithyalin. Opaque glass which shows visible striations of various colours and, when polished, gives the appearance of agate.
Internal decoration
Cased. When one layer of glass is applied over another, or when three or more layers are fused together and then outer layer or layers cut away (cameo).
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| Acid cut cameo glass vase |
Latticinio. Clear glass embedded with white glass threads giving the appearance of spiral fluting. The threads are woven into the semi-molten metal.
Lithyalin. Opaque glass which shows visible striations of various colours and, when polished, gives the appearance of agate.
