Robert PIERINI (France, born in 1950) Vase in black glass of round form, with free decoration of white lines. Signed, dated 1984 and numbered YA091 under the base. H. 17 cm - W. 16 cm - D. 9 cm We join : Robert PIERINI (France, born in 1950) Black blown glass vase with aventurine decoration, resting on a foot in glass cord. Signed, dated (19)84 and numbered NA094 under the base. H. 16 cm - W. 10 cm - D. 6 cm