caption: The image shows a portrait of Martin Heinrich Klaproth, a man in a suit and tie. At the bottom of the image, there is some text written. The man in the portrait is wearing a navy blue suit with a white shirt and a patterned tie. He has a serious expression on his face and his hands are clasped in front of him. His hair is neatly combed and his eyes are focused intently on something in the distance.