11 M.R.S. §8-1206: Completion or alteration of security certificate

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

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

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

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