- Pictorial Envelope: 1 envelope; 3 x 5 1/2 in. Eagle in flight with American flag and olive branch clasped in claws. White envelope with blue ink and applied color. Image in top-left., The olive branch is a popular symbol in the evolving American political and cultural zeitgeist. The Continental Congress sent King George III an Olive Branch Petition as attempt to avoid further armed conflict. The Great Seal of the President of the United States depicts a bald eagle holding (and facing) an olive branch with its dexter talon.