Probably Lord Leighton (?)
sale Christie's, London, 11-14 July 1896, lot unknown
John Postle Heseltine (L.1508)
C. Gerald Agnew
sale Christie's, New York, 31 January 2019, nr. 119
Other works by Frederic Leighton
Squared Up Tracing for Marquand's Music Room c. 1886
Study for "The Marquand Ceiling" c. 1885
Studies for 'The Arts of Industry as Applied to Peace'