This is an Argentinian bimetallic 1 Peso coin, specifically a commemorative issue for the Bicentennial of the First Patriotic Coin.

Key details include:

Country: Republica Argentina

Denomination: Un Peso (1 Peso)

Design: The obverse (shown) features a replica of the first national coin's obverse, which includes the National Sun (Sol de Mayo) with a face, the national emblem, and the inscription "LIBERTAD".

Years of Circulation: The general 1 Peso series circulated from 1994 to 2016, with various mint years and marks.

Composition: Bimetallic, featuring a golden-toned core and a silver-toned outer ring