Flag of Argentina (popularly known as "Bandera de Macha"), probably used by the army leadered by Manuel Belgrano in 1813 during the battles for independence. The original flag is currently exhibited at the Casa de la Libertad Museum of Sucre, Bolivia.[1][2] 
This emblem was adopted as official flag by the Tucumán Province through Law N° 8.291,[3] in 2010.
SVG based on this image
Manuel Belgrano