The image is an engraved portrait of a man shown from the chest up, positioned in an oval frame at the center of the page. He is facing slightly to the left with his head turned to the side in a profile view. His facial features include a strong nose and a focused expression. His hair is styled in a traditional 18th-century manner, appearing grey and neatly combed back. He is dressed in formal attire with a high-collared shirt, detailed vest or cravat, and a dark coat. Below the portrait is text identifying him as "Robt Udny, F.R.S." with additional decorative elements. Beneath this is a decorative coat of arms with two nude figures playing instruments on either side of a shield. The entire composition is framed with a rectangular border on aged paper.