Wikipedia tells us that Museu da Inconfidência is a history museum dedicated to those who died in a failed rebellion movement Inconfidência Mineira for Brazilian independence from Portugal. It was established in 1938. It is located in Tiradentes Square in Ouro Preto in Minas Gerais in a former Jail. It was declared as a National Museum of Brazil in 1990.  The unused card is newer than that, though.  Grade: 1