New York Laws
Article 15 - Sale of Visual Art Objects and Sculptures Produced in Multiples
15.03 - Information Required.

(b) If the purported artist was deceased at the time the master was
made which produced the multiple, this shall be stated.
(c) If the multiple or the image on or in the master constitutes a
mechanical, photomechanical, hand-made or photographic type of
reproduction, or is a reproduction, of an image produced in a different
medium, for a purpose other than the creation of the multiple being
described, this information and the respective mediums shall be stated.
(d) If paragraph (c) of this subdivision is applicable, and the
multiple is not signed, state whether the artist authorized or approved
in writing the multiple or the edition of which the multiple being
described is one.
4. Use of master. (a) If the multiple is a "posthumous" multiple, that
is, if the master was created during the life of the artist but the
multiple was produced after the artist's death, this shall be stated.
(b) If the multiple was made from a master which produced a prior
limited edition, or from a master which constitutes or was made from a
reproduction of a prior multiple or of a master which produced prior
multiples, this shall be stated.
5. Time produced. As to multiples produced after nineteen hundred
forty-nine, state the year or approximate year the multiple was
produced. As to multiples produced prior to nineteen hundred fifty,
state the year, approximate year or period when the master was made
which produced the multiple and/or when the particular multiple being
described was produced. The requirements of this subdivision shall be
satisfied when the year stated is approximately accurate.
6. Size of the edition. (a) If the multiple being described is offered
as one of a limited edition, this shall be so stated, as well as the
number of multiples in the edition, and whether and how the multiple is
numbered.
(b) Unless otherwise disclosed, the number of multiples stated
pursuant to paragraph (a) of this subdivision shall constitute an
express warranty, as defined in section 13.01 of this title, that no
additional numbered multiples of the same image, exclusive of proofs,
have been produced.
(c) The number of multiples stated pursuant to paragraph (a) of this
subdivision shall also constitute an express warranty, as defined in
section 13.01 of this title, that no additional multiples of the same
image, whether designated "proofs" other than trial proofs, numbered or
otherwise, have been produced in an amount which exceeds the number in
the limited edition by twenty or twenty percent, whichever is greater.
(d) If the number of multiples exceeds the number in the stated
limited edition as provided in paragraph (c) of this subdivision, then
state the number of proofs other than trial proofs, or other numbered or
unnumbered multiples, in the same or other prior editions, produced from
the same master as described in paragraph (b) of subdivision four of
this section, and whether and how they are signed and numbered.