NICOLAS KALMAKOFF (1873-1955) Portrait of a woman (possibly Portrait of Ofelia Nieto)

signed with artist's monogram and dated '1924' ( lower right) watercolour, sepia on paper 28.5 x 22.5 cm (à vue) Executed in 1924 Ofelia Nieto (1898–1931) was a Spanish soprano born in Madrid, widely regarded as one of the most distinguished Spanish opera singers of her generation