The 13-cent Virginia State Flag stamp (Scott 1642) features an image of the state flag adopted in 1861. The flag represents the Commonwealth of Virginia's love of freedom.
A deep blue field with a circular white center contains the seal of Virginia with the Latin motto "Sic Semper Tyrannis" ("Thus Always to Tyrants"). The two figures, both dressed as warriors, are acting out the motto's meaning. The woman, Virtue, represents Virginia. His fallen crown nearby, the man holds a scourge and chain signifying that he is a tyrant.
Scott 2005 Specialized Catalogue of U.S. Stamps and Covers
SHG Resources (http://www.shgresources.com/va/symbols/flag/)