Pittura (dittico) and Tensione verticale interrotia al centro [Two Works]

ANTONIO CALDERARA (1903-1978) Pittura (dittico) and Tensione verticale interrotia al centro [Two Works] (i) Pittura (dittico) signed with the artist's initials 'A-C' (lower left); signed and dated 'Antonio Calderara 1973' (on the reverse) watercolor on paper 12 3/8 x 6 ½ in. (31.4 x 16.5 cm.) Painted in 1973. (ii) Tensione verticale interrotia al centro signed with the artist's initials and dated 'A. C. 1971' (lower left); signed and dated again 'Antonio Calderara 1971' (on the reverse) watercolor on paper 6 ¼ x 6 in. (15.9 x 15.2 cm.) Painted in 1971.