Circular bowl made from full lead crystal, with deep ridged base, and ground and polished inside.
Materials and techniques
Lost wax, cast in full lead crystal with oxides. The process involves encasing the wax model in a refractory plaster, steaming out the wax and then placing in the kiln with glass in a crucible on top of the mould. The kiln is then fired and the glass enters the mould by gravity. After a long firing and cooling process, which normally takes a week, the mould is broken away from the glass. The glass bowl was then extensively 'finished' by sandblasting, and the rim and base ground and polished. This bowl was fired twice in order to achieve the surface effect.