The 20 cent coin from 1923 with a titre of 0.680 and a weight of 5 grams and 4 tenths (5.4 grams) refers to a specific historical coin, likely from a French or European mint. The titre indicates the coin's gold or silver content, with 0.680 suggesting that it is 68% pure metal. This coin is notable for its age and composition, making it of interest to collectors and numismatists.
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