Woodcut on paper in black ink of a male figure riding a mule. The rider sits in a casual side-saddle position with his face turned left, toward the back of the mule. His right hand rests on the mule's hind quarters, and his left arm rests on his left leg. He wears shoes, striped pants, a polka-dot kerchief, and a wide-brimmed hat. The mule faces right and wears a harness. Tall plants and blades of grass fill the foreground; the bare branches of a tree are visible in the background, with a single bird perched on one branch to the right. "’TRUSTY ON A MULE’ / ARTIST'S PROOF / Hale Woodruff-1935" is written in pencil along the paper’s bottom edge.