New York Laws
Article 6-A - Mold Liens
151 - Creation of a Lien.

ยง 151. Creation of a lien. Molders shall have a lien, dependent on
possession, on all dies, molds, forms or patterns in their hands
belonging to a customer, for the balance due them from such customer for
any manufacturing or fabrication work, and in the value of all material
related to such work. Such lien shall not have priority over any
security interest in the die, mold, form or pattern that is perfected at
the time the molder acquires the lien. The molder may retain possession
of the die, mold, form or pattern until the charges are paid.