W. Va. Code § 13-1-24

Bonds issued under this article, except to the extent that their status shall be affected by registration made in pursuance of this article, shall have all the qualities of negotiable paper under the law merchant and shall not be invalid for any irregularity or defect in the proceedings for the issuance thereof, and shall be incontestable in the hands of bona fide purchasers or holders thereof for value.