Check out Friedrich Siebenrock's haircuts throughout his career:
Friedrich Siebenrock had a variety of different haircuts during his lifetime. He was most celebrated as an outstanding zoologist, taxonomist and herpetologist. However, the Austrian herpetologist was especially known for his beautiful sense of fashion and his livable personality. Before his tragic passing at age 72 he was repeatedly in the spotlight of magazines and tabloids because of his superb hair. Check out Friedrich Siebenrock's former and current looks in the image gallery right here: