Certificate for Brazilian ship carrying seven enslaved persons

A ship certificate for the Brazilian slave ship the Convenção, captained by Joaquin Antonio da Corta. A single page certificate document with writing on the recto in brown ink by three different hands, in both Spanish and Portuguese. At the top left are two stamps: one oval-shaped in black ink depicting a large [2] beneath a rising sun motif; the other is in blue ink and depicts a rooster above a decorative banner reading [SELLO DEL (illegible) / 1810]. The content notes the ship left the coast of Rio de Janeiro and arrived at the port of Montevideo, Uruguay in 1840 with seven enslaved persons on board.