Portrait Head of an Elder
c. 80 BCE. Marble, height 14 3/8″ (36.5 centimeters). Metropolitan Museum of Art, New York.
Barberini Togatus
c. 1st century BCE – 1st century CE. Marble, height 5′ 5″ (1.65 meters). Palazzo de Conservatori, Rome.
Recommended Reading
Khan Academy Video and Article
Metropolitan Museum Article