SORINE, SAVELY (1878–1953) Portrait of a Lady with a Terrier, signed and dated 1948. Pencil, watercolour, ink and gouache on paper, 73.5 by 59 cm. Provenance: Estate of Otto H. Kahn (1867–1934), a banker and patron of the arts, USA. Private collection, UK. Authenticity of the work has been confirmed by the expert O. Glebova.