(815 ILCS 105/4) (from Ch. 17, par. 602)

Sec. 4. Any note, bond, bill or other written instrument, made payable to any person named as payee therein, shall be assignable, by indorsement thereon, under the signature of such person, and of his assignees, in the same manner as bills of exchange are, so as to transfer absolutely and vest the property thereof in each and every assignee successively.

(Source: P.A. 84-550.)