As used in this article:
(a) "Public security" means a bond, note, certificate of indebtedness or other obligation for the payment of money issued by this state or by any of its departments, agencies, boards, commissions or other instrumentalities or by any of its public corporations, political subdivisions, municipal corporations or other governmental units.
(b) "Instrument of payment" means a check, draft, warrant or order for the payment, delivery or transfer of funds.
(c) "Authorized officer" means any official of this state or of any of its departments, agencies, boards, commissions or other instrumentalities or of any of its public corporations, political subdivisions, municipal corporations or other governmental units whose signature to a public security or instrument of payment is required or permitted.
(d) "Facsimile signature" means a reproduction by engraving, imprinting, stamping or other means of the manual signature of an authorized officer.