Galerie De Multiples

Is there a satisfactory definition of l ' multiple work ' the most common comes to us from the 19th century: up to eight copies plus four artist's proofs, it is a unique piece, beyond, it is a multiple. In reality, it is a definition that distinguished the original of the copy, not the "masterpiece" single of l multiple artwork. The only one that matches the reality would be finally to say that a multiple is a ' numbered and signed, work that exists in multiple copies, claimed by the artist as being a ' work of art! Are there fifty or two, they are multiple.