An engraved portrait of Sir Isaac Newton at age 83. He appears from the waist up, seated in a high-backed chair. He has shoulder-length, wavy white hair and wears a dark, heavy-textured robe over a white shirt with a high cravat. His right arm rests on the chair, and his left hand sits in his lap. A classical column base and shaft are visible in the background on the right. The engraving uses detailed line work and cross-hatching to define light, shadow, and texture.

ISAAC NEWTON, KNIGHT, AGED 83.

Eques Auratus Original: "Eq. Aur." Literally "Golden Knight," a formal title indicating a Knight Bachelor in the British honours system.

Painted by I. Vanderbank, 1725

Engraved by Geo. Vertue, 1726.