Wentworth: early English printing by William Caxton and Wynkyn de Worde including the Rockingham Chaucer; the property of the trustees of Olive, Countess Fitzwilliam’s Chattels settlement and of other family trusts [other title:] English incunabula from the Wentworth library (catalogue for an auction conducted by Christie, Manson & Woods, London, 8 July 1998)