Christie’s charges a premium to the buyer on the Hammer Price of each lot sold at the following rates: 29.75% of the Hammer Price of each lot up to and including €20,000, plus 23.8% of the Hammer Price between €20,001 and €800.000, plus 14.28% of any amount in excess of €800.000. Buyer’s premium is calculated on the basis of each lot individually.
Mrs. de Bordes-van Walré, Utrecht.
Mrs. A.G.W. van Eeghen-de Bordes, Zeist.
A. Staring, 'Het portret in Nederland 1730-1830', in: Oud Holland, XL, 1922, pp. 70-1.
A. Staring, De Hollanders Thuis, The Hague, 1956, p. 170, plate LII (portrait of Maria Kops only).
M. Praz, Conversation Pieces, London, 1971, pp. 260-1, illustrated (portrait of Maria Kops only).
The Hague, Panorama Mesdag, Het Portret in Nederland 1730-1830, 1921, no. 17.
Amsterdam, Rijksmuseum, Drie eeuwen portret in Nederland, 29 June-5 October 1952, no. 61.
Haarlem, Teylers Museum, Wybrand Hendriks, 20 May-16 July 1972, pp. 15 and 22, nos. 9-10, figs. 17-8.