Argentina 'Rivadavias' First Issue

Argentina · 1858 · 5 Centavos

This stamp is part of the first issue of the Argentine Confederation, known as the 'Rivadavias'. It features a portrait of Bernardino Rivadavia, the first president of Argentina, within an ornate frame. The design is notable for its simplicity and the absence of the country's name, a common feature of very early postage stamps.

Issued in 1858 by the Argentine Confederation, these stamps were used for mail within the provinces, excluding Buenos Aires which was separate at the time. They represent the beginning of a unified postal system in the nascent nation.