Ohio Rev. Code § 1308.13: Completion or alteration of security certificate - UCC 8-206.

(A) If a security certificate contains the signatures necessary to its issue or transfer but is incomplete in any other respect:

(1) Any person may complete it by filling in the blanks as authorized; and

(2) Even if the blanks are incorrectly filled in, the security as completed is enforceable by a purchaser who took it for value and without notice of the incorrectness.

(B) A complete security certificate that has been improperly altered, even if fraudulently, remains enforceable, but only according to its original terms.