Printing of black-and-white illustrations of United States stamps

§ 2506. Printing of black-and-white illustrations of United States stamps (a) When requested by the Postmaster General, the Public Printer shall print as a public document for sale by the Superintendent of Documents, illustrations in black and white of postage stamps of the United States, together with such descriptive, historical, and philatelic information with regard to the stamps as the Postmaster General deems suitable. (b) Notwithstanding the provisions of section 58 of title 44, stereotype or electrotype plates, or duplicates thereof, used in the publications authorized to be printed by this section may not be sold or otherwise disposed of.