A tall, narrow panel depicts a robed, bearded man with a staff and book, a figure above
A tall, narrow, vertically oriented panel painting is structured into two main sections: a triangular pediment at the top and a larger rectangular panel below. In the triangular pediment, a half-length figure of a man is depicted. He has long, dark hair and a beard, and looks slightly to the right. He wears a dark, possibly textured tunic and a lighter, draped garment over his left shoulder. Below him, a scroll unfurls with the text "ECCE AGNUS DEI" visible. The main rectangular panel features a full-length standing figure of a man with a long, light-toned beard and dark hair. He wears a dark, hooded robe that falls in heavy folds to his feet. His right hand holds a T-shaped staff, which rests vertically on the ground beside him. His left hand holds a closed, rectangular book, partially concealed by the folds of his robe. The figure stands within an arched niche, which is decorated with intricate, curvilinear patterns resembling tracery above his head. The background behind the figure is a plain, lighter tone. The entire panel is framed by architectural elements, including columns on the sides. At the very bottom of the artwork, a rectangular base displays the text "S. ANTONIUS. AB." in light letters against a dark band. This text is flanked by two diamond shapes, each containing a cross pattern.