As used in this chapter:
1. “Authorized officer” means any official of this state or any of its departments, agencies or other instrumentalities or any of its political subdivisions whose signature to a public security or instrument of payment is required or permitted.
2. “Facsimile signature” means a reproduction by engraving, imprinting, stamping or other means of the manual signature of an authorized officer.
3. “Instrument of payment” means a check, draft, warrant or order for the payment, delivery or transfer of funds.
4. “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 or other instrumentalities or by any of its political subdivisions.