This is a vintage 1976 Mexican 5 Pesos coin featuring the portrait of Vicente Guerrero, a hero of the Mexican War of Independence. This specific heptagonal (seven-sided) design was minted between 1971 and 1978. The obverse depicts the National Emblem of Mexico, an eagle perched on a cactus devouring a snake, while the reverse shows the profile of Guerrero with the denomination 'CINCO PESOS' and the year '1976'. It is a common but historically significant piece for collectors of Latin American numismatics. The coin shows signs of circulation including moderate surface oxidation and edge wear, which gives it an authentic aged patina. While not a high-value bullion coin, it is a great entry-level collectible or a nostalgic piece for those interested in Mexican history and currency.