A series of bi-national coins, including a proof coin, were made in the United States between 1903 and 1908. The coins had the words USA on the reverse and Philippines on the obverse.

The entire series, which featured an Eagle on a shield on one side and Lady Liberty on the other, was exquisitely detailed. Not many of the proofs have survived. There are only two from 1907. Both are also distinct since they were struck on planchets that differed in diameter and fineness.

These splendid silver coins, distinguished by their bold design, proudly represented Spanish supremacy over both the Old World of Europe and the New World of the Americas and the East. They gradually replaced the cob coins by adopting a prescribed circular shape during 1732-1772, which was uniquely safeguarded against debasement with a milled floral edge.

Meticulously crafted and composed of 916.66 fine silver, these columnarias were produced using screw presses, maintaining the same denominations as the earlier cob coins. They quickly earned a well-deserved reputation for being the most widely recognized coins across the known world, solidifying their status as the precursor to modern international currency.

Among the currencies used before the Spaniards ever set foot. Piloncitos has been used as a means of payment when bartering goods between neighboring countries such as China, Borneo, Java, and Thailand, among other local currencies, piloncitos consists of pure gold with a a distinct size comparable to a bead with a flat base unlike its another local counterpart that comes in sizeable donut shape rings.