No VAT will be charged on the hammer price, but VAT at 17.5% will be added to the buyer's premium which is invoiced on a VAT inclusive basis
Sir George Holford, Dorchester House, and by descent; Sotheby's, London 19 April 1967, lot 42.
THE PROPERTY OF A EUROPEAN COLLECTOR
F. Todini, La Pittura umbra dal duecento al primo cinquecento, Milan, 1980, I, p. 196, II, fig. 1313.