Palace of Fine Arts Postcard from the Panama-Pacific Exposition, by Unknown, 1915, Smithsonian Archives - History Div, Postcard from the Panama-Pacific Exposition in San Francisco, California. The postcard shows the Palace of Fine Arts. The exposition was intended to illustrate the function and administrative faculty of the Government of the United States and to demonstrate the nature and growth of its institutions, their adaptation to the wants of the people, and the progress of the nation in the arts of peace and war. The Smithsonian Institution contributed an exhibit focusing mainly on ethnology..