N.Y. Debtor & Creditor Law § 62

§ 62. When non-resident creditor to annex accounts and securities. A\nconsenting creditor, residing without the state, and within the United\nStates, must annex to his consent the original accounts, or sworn copies\nthereof, and the original specialties or other written securities, if\nany, upon which his demand arose or depends. Provided, however, that\nwhen such original specialties, or other written securities, are lost,\nsuch fact must be stated as a reason for not annexing thereto the\nconsent, and the fact of the loss, and the manner of the loss thereof\nmust be stated in the affidavit of the creditor to the best of his\nknowledge, or must be otherwise proved by affidavit to the satisfaction\nof the court; and the court may thereupon, in such case or proceeding,\nby its order, dispense with the annexing to such consent of the original\nspecialties or other written securities.\n