The Precision of Portraiture The brushwork of F. Prata finds its most significant expression in the formal portraiture of the nineteenth century. Working during a period of structured social hierarchy, Prata focused on the likeness of the individual, capturing the physical presence and the dignity of his subjects. The artist’s hand is most clearly seen in the 1872 depiction of General João Guilherme de Bruce, a work that resides within the Museu Histórico Nacional in Rio de Janeiro. In this piece, the subject is presented in a half-length pose, standing with a quiet authority that reflects th…