The essay explores the interactive role of experts in the construction of the intangible object in copyright law. It pays special attention to the interventions and eventual connections of a British design consultant and fashion designer, Victor Herbert, in different copyright cases such as the well-known Designers Guild Ltd v. Russell Williams (Textiles) Ltd [2001]. The article traces the background of his early court appearances as an expert witness and the range of visual techniques and experiments he developed to "materialize" the incorporeal in copyright law.