each work incised with the artist's initials and date on the underside

Incalmo coloured glass

502.1: 20.1 x 20.9 x 20.1 cm (7 7/8 x 8 1/4 x 7 7/8 in.)
503: 47.5 x 13 x 13 cm (18 3/4 x 5 1/8 x 5 1/8 in.)
503.1: 32.1 x 11 x 11 cm (12 5/8 x 4 3/8 x 4 3/8 in.)
503.2: 22.9 x 14 x 14 cm (9 x 5 1/2 x 5 1/2 in.)

Designed in 1966 and executed in 1982-1984, produced by Venini & C., Murano, Italy.