10.25 in L x 10 in W
Frame has brown paper covering the back so I'm unsure if the image is a print or an original coat of arms.
Coat of arms states, "The National Historical Society Incorporated in the District of Columbia United States 1915."
The matte is a forest green color and the brown wooden frame has some scuffs.
The National Historical Society focuses on fostering, promoting, and encouraging interest in and the study of American History and culture, supporting research, and developing media to connect all Americans to their shared heritage.