Eine Gruppe von Eichenstämmen 

"Eine Gruppe von Eichenstämmen" is a drawing by the Dutch Baroque artist Jan Lievens. It depicts a group of oak trees in a landscape setting. The artist uses a delicate pen-and-ink technique to depict the intricate details of the trees, from their bark to their branches. This drawing is a fine example of Lievens' skill as a draftsman and his interest in naturalism, capturing the beauty of the natural world.