Okla. Stat. tit. 21, § 21-1587: Forging tickets or passage

Every person who, with intent to defraud, forges, counterfeits,

or falsely alters any ticket, check or other paper or writing to

entitle the holder or proprietor thereof to a passage upon any

railroad, or in any vessel or other public conveyance; and every

person who, with like intent, sells, exchanges or delivers, or keeps

or offers for sale, exchange or delivery, or receives upon any

purchase, exchange or delivery any such ticket, knowing the same to

have been forged, counterfeited or falsely altered is guilty of

forgery in the second degree, a Class D1 felony offense.