World War I and the aftermath brought substantial changes to the coinage. Gold coinage was suspended and the franc was debased. Smaller, holed 5, 10, and 25-centime coins minted in nickel or cupro-nickel were introduced in 1914, finally replacing copper in 1921. In 1920, 1 and 2-centime coins were discontinued and production of silver coinage ceased, with aluminium-bronze 50-centime, 1-franc, and 2-franc coins introduced. Until 1929, these coins were issued by the chambers of commerce, bearing the phrase "bon pour" on it (meaning: "good for"). At the beginning of the 1920s, chambers of commerce also issued small change coins in aluminium. In 1929, the original "franc germinal" of 1795 was replaced by the "franc Poincaré", which was valued at 20% of the 1803 gold standard.