Consisting of Rare Autograph Letters, Records and Documents, 1084-1770, Including One Hundred and Sixty-six Holograph Letters of Lorenzo the Magnificent, the Property of the Marquis Cosimo De' Medici and the Marquis Averardo De' Medici, which Will be Sold by Auction by Messrs. Christie, Manson & Woods ... London ... February 4, 19l8, and Three Following Days