Seal of the President of the United States
Overview
 
The Seal of the President of the United States is used to mark correspondence from the U.S. president
President of the United States
The President of the United States of America is the head of state and head of government of the United States. The president leads the executive branch of the federal government and is the commander-in-chief of the United States Armed Forces....

 to the United States Congress
United States Congress
The United States Congress is the bicameral legislature of the federal government of the United States, consisting of the Senate and the House of Representatives. The Congress meets in the United States Capitol in Washington, D.C....

, and is also used as a symbol of the presidency. The central design, based on the Great Seal of the United States
Great Seal of the United States
The Great Seal of the United States is used to authenticate certain documents issued by the United States federal government. The phrase is used both for the physical seal itself , and more generally for the design impressed upon it...

, is the official coat of arms
Coat of arms
A coat of arms is a unique heraldic design on a shield or escutcheon or on a surcoat or tabard used to cover and protect armour and to identify the wearer. Thus the term is often stated as "coat-armour", because it was anciently displayed on the front of a coat of cloth...

 of the U.S. presidency and also appears on the presidential flag
Flag of the President of the United States
The Flag of the President of the United States consists of the presidential coat of arms on a dark blue background. While having the same design as the presidential seal since 1945, the flag has a separate history, and the designs on the flag and seal have at different times influenced each other...

.

The presidential seal developed by custom over a long period before being defined in law, and its early history remains obscure.
 
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