Close-up of Saint Joseph in Ludwig Thiersch's Nativity Sketc

This is a 19th-century charcoal detail by Ludwig Thiersch, focusing on the seated figure of Saint Joseph from his Nativity sketch (BXM 18060). Joseph is depicted as an elderly man with a beard, deep in thought, resting his hand on his temple, with his figure defined by the strong contrast and expressive shading typical of the charcoal medium.