US Penalty Mail Stamp

United States · 2005 · 39¢

A simple blue-on-white design featuring 'OFFICIAL MAIL' at the top, 'U.S. POSTAGE' at the bottom, and '39' in the center, indicating its face value.

This stamp is a 'Penalty Mail Stamp' used by U.S. government agencies for official correspondence, signifying that the postage is paid by the government rather than the sender. It represents the postal system's method for handling government mail in the early 21st century.