A dark blue disc displaying an eagle with wings reversed and superimposed with two crossed fasces all gold encircled by a gold designation band inscribed “NATIONAL GUARD” above and “BUREAU” below in dark blue. The entire device is edged with a dark blue border. 

On 12 July 1920, the Commission of Fine Arts was requested by the War Department to render assistance in the design of an insignia for the Militia Bureau.  The citizen-soldier is represented by the fasces, denoting the unity of the states, and the eagle represented the Federal Government.  The original design and model were made by Anthony de Francisci, the Sculptor, and were approved by the Commission.  In memorandum from the Chief of Staff to the Quartermaster General, on the Date of 12 May 1921, the design and model submitted by the Commission of Fine Arts, was adopted and has remained the basic symbolism since 12 May 1921. 

The Militia Bureau was redesignated as the National Guard Bureau on 15 June 1933, in accordance with Public Law No.64, 73d Congress, and the name of the branch insignia was changed accordingly. The seal was revised (Color changed to Dark Blue) 05 April 2022.