The issuance of the state flags pane was a major philatelic event of the Bicentennial celebration in 1976. It was a colorful and patriotic tribute to the unity and diversity of the United States. The Washington state flag, with its distinctive design, stands out on the sheet. The green field represents the "Evergreen State," and the portrait of George Washington, for whom the state is named, is a direct and powerful connection to the nation's founding father. This stamp is a celebration of both Washington's unique identity and its integral place in the American story.