Study of a naked male figure with arms outstretched and a detail of the head, both with proportions marked

SOURCE: Daniele Barbaro. M. Vitruvii Pollionis De architectura libri decem, cum commentariis Danielis Barbari (Venice, 1567), p. 89 NOTES: Vitruvius's original treatise was written during the first century BC. This 1567 edition was edited and augmented by Daniele Barbaro.