A field glass belonging to Beresford and San Martín sword, Belgrano watch and the flag of Ayohuma, an oil painting of Manuelita Rosas by Prilidiano Pueyrredón, Sobremonte bed, the uniform worn by Guemes, oil paintings by Cándido López on the war of Paraguay and Mitre "chambergo" (broad-rimmed soft hat.) A great part of the history of Argentina in the 19th century is represented in this big house located in Lezama Park, where the Museo Histórico Nacional (National Historical Museum) has been located since 1897. It is a mansion constructed by José Gregorio Lezama that includes an observation tower, 2 patios, a gallery and luxurious interior rooms with wood panelling on their ceilings.