Latin Monetary Union founded by Second French Empire
History
Preliminary context
The LMU adopted the specifications of the French gold franc, which had been introduced by Napoleon I in 1803 and was struck in denominations of 5, 10, 20, 40, 50 and 100 francs, with the 20 franc coin (6.45161 grams or 99.5636 grains of .900 fine gold struck on a 21-millimetre or 0.83-inch planchet) being the most common. In the French system the gold franc was interchangeable with the silver franc based on an exchange ratio of 1:15.5, which was the approximate relative value of the two metals at the time of the law of 1803.
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