The obverse of these coins remained largely unchanged during the years 1903 to 1945. The centavo, one centavo, and five centavo coins depict a Filipino man kneeling against an anvil, with a hammer resting at his side. He is on the left side (foreground), while on the right side (background) there is a simmering volcano, Mt. Mayon, topped with smoke rings. This figure is an allegory for the hard work being done by the native peoples of the Philippines in building their own future.