This ring is made from a 1957 1 peso coin. The coin is billon which is an alloy of gold or silver with base metal. In this case, the coin is 10% silver, 70% copper, 10% nickel and 10% zinc. The ting is a size 9 and the band width is 8.7mm. The coin is finished with a natural polish. An aged patina finish can also be applied. The ring can be sized up or down, up to one full size.