The product described is a rare 1862 quarterilla from Mexico's Estado Libre De Sonora, made of copper. This circulated coin belongs to the historical period of the First Republic of Mexico (1824-64) and is uncertified. Its color is brownish (BN) and its fineness is not specified. This unique piece offers a glimpse into Mexico's past during a tumultuous period in its history, making it a valuable addition to any coin collection focusing on Latin American numismatics.