Public domain photos

The image shows a portrait of Dr. Jacob Georg Christian Adler, a man with a human face. He is wearing a white shirt and a black coat, and has a serious expression on his face. His hair is short and dark, and his eyes are focused intently on something in the distance.

The image shows a portrait of Dr. Jacob Georg Christian Adler, a man with a human face. He is wearing a white shirt and a black coat, and has a serious expression on his face. His hair is short and dark, and his eyes are focused intently on something in the distance.Open in library