A pen and ink and wash drawing of a standing king in a turban. Inscribed on the verso: No. 28 JS. A study for the Black king Balthasar on the right in Ricci's painting The Adoration of the Magi (RCIN 405743), one of seven paintings of the New Testament painted for Smith by Ricci. The drawing is one of 16 drawings relating to the painting in the Windsor album. Another study for the same king is 907091.

The idea of depicting one of the three Magi as Black developed in the medieval period, when each of the Three Kings was used to represent the three continents of Christendom: Europe, Asia and Africa. This became a common trope in European art, and was often combined with a tendency to show Black sitters as a kind of fantasy, dressed in luxurious silks and turbans, as seen in the tronies of seventeenth century Dutch art. In Sebastiano Ricci's painting, Balthasar is the most prominent of the Three Kings, standing on the right of the composition, directly counterbalancing the figure of the Virgin. This drawing is close to the final pose of the King in the painting, seen in three-quarters from behind and with his face in profile, focussing attention on his robes, his voluminous sleeve, and his sword. In the painting he is also accompanied by a Black attendant. The drawing 907091 shows an alternative view from the front, with Balthasar holding his gift of frankincense in the crook of his arm.