A newly discovered copy of an inventory of c.1459 of Lorenzo Ghiberti's collection of antiquities is the earliest known inventory of any such collection. It is sufficiently detailed for some surviving pieces to be identified and the most famous item, a relief known as 'The Bed of Polyclitus', can be shown to be an early-fifteenth-century `all'antica' invention. The influence of the collection is evident into the sixteenth century in works by Raphael and other artists.