Coat of arms of João Pereira Darrigue de Faro, 2nd baron and 1st viscount of Rio Bonito. Also used by his nephew, the 3rd baron of Rio Bonito.
Archivo Nobiliarchico Brasileiro, of Rodolfo Smith de Vasconcelos and Jaime Smith de Vasconcelos (1918).
myself, based on symbol of XIX century.