Alexander Calder (July 22, 1898 – November 11, 1976) was an American sculptor known as the originator of the mobile, a type of moving sculpture made with delicately balanced or suspended shapes that move in response to touch or air currents. Calder’s monumental stationary sculptures are called stabiles. He also produced wire figures, which are like drawings made in space, and notably a miniature circus work that was performed by the artist. ‘Sandy’ Calder was also known for his use of primary colors in his original paintings, sculptures and prints.
This lithographic work titled Orange and Blue Spheres was created in 1970 and numbered 50 from the small edition of only 75.
The work is accompanied by a certificate of authenticity.