Check out Jacob Struve's haircuts throughout his career:
Jacob Struve had a variety of different haircuts during his lifetime. He was well known as an outstanding mathematician and librarian. However, the German mathematician was particularly known for his exceptional sense of fashion and his livable character. Before his demise at the age of 86 he was again and again featured in tabloids due to his fine haircuts. Check out Jacob Struve's former haircuts right here: