On the front of the $500 coupon is the “Prosperity President”, a portrait of the 25th President of the United States, William McKinley (1843-1901). On the back is the denomination “500” in lowercase, with different font sizes. 
The main scene pattern on the front of the US dollar banknote is the portrait of a character, and the main color is black. The main scene pattern on the back is a building, and the main color is green, but there are few differences in the colors of different editions. For example, the back of the 1934 edition is dark green, the back of the 1950 edition is grass green, and the back of the 1963 edition is dark green.