Christie's charges a Buyer's premium calculated at 23.205% of the hammer price for each lot with a value up to €110,000. If the hammer price of a lot exceeds €110,000 then the premium for the lot is calculated at 23.205% of the first €110,000 plus 11.9% of any amount in excess of €110,000. Buyer's Premium is calculated on this basis for each lot individually.
The following five lots (44-8) have passed by descent from the sitters to the Van Toulon van der Koog family, and thence by direct descent to the present owner.
The help of E.J. Wolleswinkel of the Iconographisch Bureau, The Hague, in the compilation of the entries is here gratefully acknowledged.