Sotheby's (London)
Fine Continental books and manuscripts, science and medicine: comprising printed books, autograph letters and manuscripts: including a fine binding made for Fürst Peter Ernst von Mansfeld, letters from the Mannheim collection, letters and poems by Boris Pasternak, over thirty letters by Caspar David Friedrich (catalogue for an auction conducted by Sotheby's, London, 5 December 1991)
London, Sotheby's, 1991
£ 16