caption: The image shows an old book with a picture of a man in a suit and tie on the cover, along with text and a stamp. The book is titled "Friedrich Georg Biedel's Dentifie" and is dated 1866. The man in the picture is wearing a black suit and a white shirt, and has a serious expression on his face. The text on the book is written in a cursive font and is surrounded by a decorative border. The stamp is a circular design with a white background and a black border.