Unique studio glass vase/sculpture by Ann Wärff, later Ann Wolff, made at Kosta, Sweden, in 1973. Hand-blown heavy clear crystal glass with a striking crackle/ice-textured effect in the lower section. Signed and dated to the base: "Kosta Unik 1973/169 Ann Wärff". Original Kosta Sweden label remains attached. Height: 18 cm Diameter: approx. 15 cm Weight: approx. 4.5 kg Excellent vintage condition with only minor signs of age and handling. No chips, cracks or repairs.