The usage of the royal weapons for such cases, could be seen in the official documents, since the First Junta was installed in 1810, until 1813, when they were replaced by the Assembly ones. Before the Revolución de Mayo (May Revolution), and during many years after that, it was always Juan de Dios Rivera who made the new seals, or repaired the ones that the constant use left in bad conditions.

The Constituent General Assembly was formed on January 31st, 1813, and although there is no law or decree stating it, a few days afterwards, it began to use (in its documents) the seal that is today our national coat of arms. This could be affirmed, because two letters of citizenship that were issued by the assembly, dated on February 22nd of that year, in which that seal stamped in sealing wax appears for the first time, still exist. One of them is kept in the National Historic Museum, extended in favor of don Antonio Olavarría, and is signed by the president of the Corps, General Alvear, and by Secretary Vieytes. There is no law or decree that time proving that the same design of that seal should be the national coat of arms, but due to governmental concordant dispositions, it became Argentina's coat of arms; governments and populations adopted it, although no official sanction imposed it, the usage confirmed it by itself.

On March 13th, 1813, the first official mention about the seal appears. "The Assembly Writer" says in that day´s session: "A motion made by one of the representatives on this day, in order that it could be appointed for the Supreme Executive Power the seal that it should use in its diplomas and official replies, the following was agreed by unanimity: DECREE The Constituent General Assembly orders that the Supreme Executive Power uses the same seal of this Sovereign Corps, with the only difference that the inscription of the Circle should be "Supreme Executive Power of the Río de la Plata United Provinces". TOMAS VALLE - President HIPOLITO VIEYTES - Deputy Secretary With regard to the drawing, it is completely ignored who made it and who had the idea of using badges that in group represent glory, union and freedom, enlightened by the rising sun rays.

As time went by, the coat of arms was subject to alterations that began with the provisions of the same Assembly with regard to the elimination of the rising sun and to the addition of military trophies. Others a posteriori, performed in seals of documents and in engraving of publications consisted in putting "angel face" to the sun, altering the number of its rays, increasing the number of flags, varying the ellipsis proportions, modifying the shape and the inclination of the freedom cap, and others. All of this made it necessary to rule it.

Some provissions of the National Executive Power tried to correct the lack of uniformity and the whimsical modifications. That was fulfilled with Decree N 10.302, issued in Ministers' General Agreement, on April 24th, 1944.

As regards its symbolism, it is considered that the human forearms that shake their right hands in the inferior frame, represent the union of the populations of the Río de la Plata United Provinces.

The Phrygian cap is an old freedom symbolism and the pike (short lance) evidences the aim of defending it up, if necessary, with the weapons.

The sun, in its rising position, announced the appearance of a new Nation to the world.

The laurels are heraldic symbols of victory and triumph, and they are evidence of the victories already obtained in Suipacha and Tucumán.

With regard to the ribbon bow in the azure, silver (white) and azure colors, similar to the ellipse quarters, it represents the Argentine nationality.