Maine Centennial half dollar
The Maine Centennial half dollar is a commemorative coin struck in 1920 by the United States Bureau of the Mint, in honor of the anniversary of Maine's admission to the Union on March 15, 1820. It was sculpted by Anthony de Francisci, following sketches by artist Harry Cochrane, from Monmouth, Maine.
Source: Wikipedia — Maine Centennial half dollar (CC BY-SA 4.0)