[3] In the spring of 2012, under the guidance of Ernst van de Wetering, one of the world's foremost authorities on Rembrandt, the museum sent the painting to Amsterdam for further study and treatment.

[3] Martin Bijl, former head of restoration at the Rijksmuseum in Amsterdam, worked with van de Wethering on the painting's conservation.

The painting shows van Os as an elderly man, seated holding a cane in his left hand, donning a black robe with white collar and cuffs, and wearing a cap.

[3] During the restoration process, it was determined that later additions to the painting included lace around the collar and a chain with a cross hanging from the subject's neck.

The frame, as described by the Joslyn's associate curator of European art, "It is a restrained style of framing that corresponds with the conservative Protestant sensibility of the age and to the strong mercantile culture of the Netherland, which profited from importing exotic woods through the Dutch East India Company.