Two types of this coin have been made; all-silver and with gold rimming. Peercoin is one of the early crypto-currencies, with some interesting differences to Bitcoin. These include no fixed limit on the number of possible PPC in existence, and it is designed to attain a 1 percent annual rate of inflation. The hologram for this coin is notably very small. In 2013, the BTC value of the 10 PPC face value varied between 0.11 BTC and 0.15 BTC.