The decimal "franc" was established as the national currency by the French Revolutionary Convention in 1795 as a decimal unit (1 franc = 10 décimes = 100 centimes) of 4.5 g of fine silver. This was slightly less than the livre of 4.505 g, but the franc was set in 1796 at 1.0125 livres (1 livre, 3 deniers), reflecting in part the past minting of sub-standard coins. Silver coins now had their denomination clearly marked as "5 FRANCS" and it was made obligatory to quote prices in francs. This ended the ancien régime's practice of striking coins with no stated denomination, such as the Louis d'or, and periodically issuing royal edicts to manipulate their value in terms of money of account, i.e. the Livre tournois. The franc became the official currency of France in 1799.