Copies, replicas, reproductions and pastiches are often legitimate works, and the distinction between a legitimate reproduction and deliberate forgery is blurred. For example, Guy Hain used original molds to reproduce several of Auguste Rodin's sculptures. However, when Hain then signed the reproductions with the name of Rodin's original foundry, the works became deliberate forgeries.
In transactions of old wine with the potential of improving with age, the issue of provenance has a large bearing on the assessment of the contents of a bottle, both in terms of quality and the risk of wine fraud. A documented history of wine cellar conditions is valuable in estimating the quality of an older vintage due to the fragile nature of wine.
When addressing the efforts to establish an artwork’s provenance history and authenticity under Guideline 4, the AML Guidelines provide that “[i]t is important to obtain and publish in any catalogue or sales document as much information as possible about the artwork, including any known provenance,” and to “check major databases of stolen and looted art and obtain any relevant and available legal documents, witness declarations, [and] expert opinions[.]” In addition to a physical examination of the artwork and a technical analysis and dating of the materials used, “[d]ocuments helpful in establishing ownership and provenance include invoices, receipts, dated photographs, insurance records, valuations, official records, exhibition catalogues, invoices for restoration work, diaries, dated newspaper articles, original signed and dated letters.”
Despite those advances, the detection of fraudulent art remains a complex undertaking. It is particularly difficult to weed out forgeries in the work of modern artists whose large numbers of works and superstar statuses make them especially attractive to those who commit fraud. Pablo Picasso, for example, was a prolific artist, creating a huge number of works on canvas and on paper as well as sculptures and ceramics. Considering his vast output and the varying styles and media in which he worked, scholars have had difficulty establishing a definitive corpus for him. The prestige associated with owning a Picasso and the difficulty of attribution, especially for a drawing, made and continues to make fraudulent representations of his work hard to police.