1-3/8" black and white with blue accent on his pants leg all against shaded blue background with slight white cloud accents. This button is more frequently seen as a 1.25" full color celluloid used c. 1959 as part of a U.S. Treasury Department campaign to encourage savings bond purchases. While the cello version is seen often, this litho version is rare and we've had five examples in five decades. This is a superb example essentially Mint.