C.J. Knowles, 2nd plate 

This is a portrait etching, a form of printmaking, by the French artist Alphonse Legros. The work, titled "C.J. Knowles, 2nd plate", is a depiction of a man with a beard, in a close-up view, showcasing the artist's skill in capturing detail and nuance in the subject’s features. Legros's signature, "A. Legros", appears in the bottom right corner, adding authenticity to the print.