Citação: "iiruig"Hm... Interesting. The weight is definitely off charts and above 5 g.
Have you tried determining its metal? There is a fun method at Numista that I tried earlier. Maybe play with your coins as well.
https://en.numista.com/numisdoc/determining-the-metal-of-a-coin-27.html
im so sorry i have a typo.. the coin's weight is 4.85 and 4.77... i have edited it now
If the weights are 4.85 and 4.77, then the weight is fine. It won't be exactly 5, +/- a few hundredth. Plus if the coin is more worn, it will become a bit lighter with time.
Citação: "iiruig"If the weights are 4.85 and 4.77, then the weight is fine. It won't be exactly 5, +/- a few hundredth. Plus if the coin is more worn, it will become a bit lighter with time.
may i know what is the range of the right weight?
counterfeit coins are usually made of silver coated copper, copper-nickle, or bronze, all those metals weigh very close to 85% of silver.
If the coin has the right module, that is diameter and thickness, and it is made of a base alloy, it cannot weigh more than 4.25 grams.
If your coin is not too thick compared to another other franc sized coins, then it is made of silver. Even your very worn one at 4.77 grams is only 5% under weight which is normal wear, especially as the rim is quite worn.
Jamais l'or n'a perdu la plus petite occasion de se montrer stupide. -Balzac
Citação: "iiruig"If the weights are 4.85 and 4.77, then the weight is fine. It won't be exactly 5, +/- a few hundredth. Plus if the coin is more worn, it will become a bit lighter with time.
may i know what is the range of the right weight?
I don't know the exact range. But 5%, I believe, is completely normal, especially for worn coins. If the weight is below 15%, then it is definitely a copy. In most cases, fake silver coins are lighter, but not heavier.
