The 10 francs Hercule silver coin (1965-1973) weighs 25 g at 900 fineness, i.e. 22.5 g of fine. The 10 francs Turin (1929-1939) weighs 10 g at 680 fineness, about 6.8 g of fine. Value follows the fine weight times the spot price.
The 10 francs Hercule silver coin (1965-1973) reuses the Hercules group of the 50 francs, on a smaller scale. It weighs 25 g at a fineness of 900, i.e. a fine weight of 25 × 0.900 = 22.5 g of pure silver.
The 10 francs Turin (1929-1939), showing a helmeted female head, weighs 10 g at 680 fineness, about 10 × 0.680 = 6.8 g of fine — far less silver. The 10 francs struck after 1973, in a silver-free alloy, must not be confused: weight and year distinguish them at once.
For a 10 F Hercule silver coin: 22.5 g of fine × the day's silver price. For a 10 F Turin: 6.8 g of fine × the day's spot. The world spot is the same for everyone; the gap between two offers comes from the professional's margin.
For a mixed batch, work out the fine weight type by type before adding up. Our silver buyback page lets you compare several professionals. The logic matches that of the 5 francs silver coin: fine weight always drives the metal value.
The numismatic premium stays moderate on these abundant circulation coins. Some Turin years or Hercule coins in fine condition may exceed the metal value, but most transactions are at fine weight. A worn coin keeps its metal and therefore its silver value.
First sort your 10 francs by type and year, since only the weight and fineness set the content. At buyback, the professional weighs, confirms the fineness and applies its schedule; payment is made by bank transfer or cheque above cash limits, with ID and register entry.
The 10 francs Hercule silver coin (1965-1973) weighs 25 g at 900 fineness, i.e. 22.5 g of fine silver. The 10 francs Turin holds only about 6.8 g of fine.
No. The 10 francs struck after 1973 are in silver-free alloys. Only the Turin (1929-1939) and Hercule (1965-1973) contain silver metal.