Introduced in 1912. Height: 4.2cm (1.65ins). Width: 5.1cm (2.01ins). Depth: 1.5cm (0.59ins).. Rene Lalique electric blue glass 'Sauterelle' (grasshopper) cachet/seal.
Mouled makers mark, 'LALIQUE'. Book reference: Marcilhac 183.