Smallest is 7/8" and largest is 1.25". First has back paper from Baldwin & Gleason, second from St. Louis Button Co., and third from W&H. First button shows "Napoleon/Jefferson." Upper right has .25" hairline with what seems to be a little extra cello but near invisible and the button displays Mint. Second button is from the "China" pavilion. A little air under the cello causes a little color variation but no stain. Last button reads "Streets Of Tokio/Universalist Vestry, December 3,4." This was a private concession called "Fair Japan" on the Pike. Inside was the concession "A Street Of Tokyo" which included a theater with 80 'native' actors and actresses, a tea house with 15 geisha girls, a Japanese garden and more. NM displaying Mint. All three buttons are rare.