This vase dating from 1920 is referred to by Felix Marcilhac, René Lalique Maître-Verrier, 1994, CP 233 and the design drawing is illustrated.
Cire perdue is an ancient form for casting a unique piece, in which a wax model is covered in plaster. It is then heated and the liquid wax removed and replaced with molten glass. Once cooled the plaster mould is destroyed. Cire Perdue items have an absence of mould lines and are not polished.