According to New York State Law, the sale of visual art objects produced in multiples require the following disclosure:
NAME OF THE ARTIST
If the artist's name appears on the multiple, it should be made clear if the artist signed the piece. If the work is not signed by the artist, state the source of the name on the multiple such as whether the artist signed the matrix, or if the work is stamped with the artist's name by the artist or the artist's estate.
Describe the process by which the multiple was made and whether it was made by hand or photographically.
If the print was editioned from the master after the artist's death, this shall be stated.
If the work is a photomechanical or handmade reproduction of another existing work of art this shall be stated and, if the work is not signed, whether the artist approved in writing of this reproduction.
Size of the edition of this print, and the size of all other editions taken from the same matrix need to be stated and whether and how all other multiples taken from the same matrix are numbered. I also include all other existing impressions, such as the number of artist's proofs, trial proofs and other proofing.