The 1926 Mexico 1 Peso .720 silver coin, known as "Un Peso Plata .720", is a circulated piece of history from Mexico. With a fineness of 0.72 and a KM Number of 455, this coin is a valuable representation of Mexican currency from the early 20th century. Despite being uncertified, it is a sought-after item for collectors interested in Mexican coins and the historical period of 1905 to the present day.