A striking deep-green engraved issue honoring General Ángel Pacheco, a notable Argentine military leader of the 19th century. Printed by Casa de Moneda in 1969, the stamp features a finely detailed bust portrait with medals and full military regalia, giving it strong classic definitive character. The single-color design enhances the sculptural engraving lines, making it attractive for thematic and historical collections. The 20-peso denomination fits well within Argentina’s late-1960s commemorative military series. A solid addition for Argentina, military history, or Latin America specialty albums.