French 5 Franc help please

I was looking at some offerings at the show yesterday when I ran across this piece.. the piece appears to be copperish and does not have the silver look I associate with crown coins.. weight is 17 grams.
can anyone offer some assistance
Thanks
Ken

can anyone offer some assistance
Thanks
Ken


If you can't swim you better stay in the boat.......
0
Comments
Charles X ruled from 1824 to 1830 when he was thrown out. The 1828 BB (Strasbourg Mint) 5 Franc (KM-728.3) should be 900 fine silver and weigh 25 grams per Krause. Based upon the appearance and weight of your coin, I'd say contemporary counterfeit.
I hope this helps,
Charlie