*§ MASTERKOVA, LYDIA (1927-2008) Composition with a Watermelon , signed and dated 1962. Oil on canvas, 70 by 75 cm. " Provenance: Russian Art, Sotheby’s New York, 26–28 April 2006, lot 147. Acquired at the above sale by the present owner. Private collection, Switzerland. Authenticity of the work has been confirmed by the art critic M. Tupitsyn, the artist’s niece.