This is a set of two 1978 Bank of Indonesia 100 Rupiah coins, made of copper-nickel with a fineness of 0.625. The coins are circulated and ungraded, with a brown color (BN). The KM number is 42 and they were manufactured in Indonesia. These coins are a great addition to any foreign coin collection and are perfect for those interested in Indonesian currency. The coins are uncertified and are being sold as-is.