Christie, M. &. W., & Christie, M. &. W. (2019). Old masters: Evening sale : Tuesday 3 December 2019 : properties from estate of Albert and Leonie van Daalen, Switzerland, the collection of Gerald Legge, 9th Earl of Dartmouth, the Fundación Cultural Formación y Humanismo, the Harry Fuld collection, the late Betty, Lady Grantchester, a member of the Royal House of Savoy. London: Christie's.

Christie, Manson & Woods, und Manson & Woods Christie. Old Masters: Evening Sale : Tuesday 3 December 2019 : Properties From Estate of Albert and Leonie Van Daalen, Switzerland, the Collection of Gerald Legge, 9th Earl of Dartmouth, the Fundación Cultural Formación Y Humanismo, the Harry Fuld Collection, the Late Betty, Lady Grantchester, a Member of the Royal House of Savoy. London: Christie's, 2019.

Christie, Manson & Woods, und Manson & Woods Christie. Old Masters: Evening Sale : Tuesday 3 December 2019 : Properties From Estate of Albert and Leonie Van Daalen, Switzerland, the Collection of Gerald Legge, 9th Earl of Dartmouth, the Fundación Cultural Formación Y Humanismo, the Harry Fuld Collection, the Late Betty, Lady Grantchester, a Member of the Royal House of Savoy. London: Christie's, 2019.