A work of art with the signature of an artist who was not the artist, it means that the signature is fake and is signed with the intent to defraud by assigning the name of a famous artist to work done by a lesser-known painter or sculptor. Rarely is the work a copy, but is usually offered as a newly-discovered work. Source: Ralph Mayer, "A Dictionary of Art Terms and Techniques"<br><br>Making counterfeits ? fraudulent copies of something valuable. Or, a counterfeit. Because fraud is involved, forgery is not to be confused with appropriation.A resource concerning forgery: Han van Meegeren (Dutch, 1889-1984) was one of the most notorious forgers of the twentieth century. Also see art conservation, copyright, droit moral, ersatz, facsimile, fake, forge, likeness, mirror, paint-by-number, paraph, radiograph, reproduction, signature, simulacrum, and simulation.