Okla. Stat. tit. 21 § 1575
Every person who, makes or engraves, or causes or procures to be made or engraved, any plate in the form or similitude of any promissory note, bill of exchange, draft, check, certificate of deposit or other evidence of debt issued by any banking corporation or association, or individual banker, incorporated or carrying on business under the laws of this state, or of any other state, government or country, without the authority of such bank, or has or keeps in his custody or possession any such plate, without the authority of such bank, with intent to use or permit the same to be used for the purpose of taking therefrom any impression, to be passed, sold or altered, or has or keeps in his custody or possession, without the authority of such bank, any impression taken from any such plate, with intent to have the same filled up and completed for the purpose of being passed, sold or altered; or makes or causes to be made, or has in his custody or possession, any plate upon which are engraved any figures, or words, which may be used for the purpose of falsely altering any evidence of debt issued by any such bank, with intent to use the same, or to permit them to be used for such purpose, is guilty of forgery in the second degree.
Okla. Stat. tit. 21, § 1575