(born in Morciano di Romagna/Rimini in 1926) Tavola del Matematico III, 1960, signed, dated and numbered 2/2, bronze 58.5 x 45x 2.5 cm 67.5 x 45 x 12.5 cm (with wooden structure)
(born in Goldau, Switzerland, in 1961 - lives and works in Vienna) Divided violet/yellow/dark yellow, 2011, titled, signed and dated on the overlap, mixed media and acrylic on canvas, 179 x 171 cm, on stretcher