caption: The image shows an old book with a picture of a man in a suit and tie on the cover. The book is titled "Friedrich Georg Biedel's Dentifie 1866" and contains text and pictures. The man in the picture is wearing a black suit with a white shirt and a black tie. He has a serious expression on his face and is looking directly at the viewer. The text on the book is written in black ink and is surrounded by a decorative border.