26 CFR 301.7209-1: -1 Unauthorized use or sale of stamps.

(a) Any person who buys, sells, offers for sale, uses, transfers, takes or gives in exchange, or pledges or gives in pledge, except as authorized in the Code or in regulations made pursuant thereto, any stamp, coupon, ticket, book, or other device prescribed by the Commissioner under the Code for the collection or payment of any tax imposed by the Code, shall, upon conviction thereof, be fined not more than $1,000, or imprisoned not more than 6 months, or both.

(b) For use or resale of unused documentary stamps, see paragraph (c) of § 43.6802-1 of this chapter (Documentary Stamp Tax Regulations).