What is this? Found in Half $ Roll

It is the size of a half dollar. Weight is 8.6 grams.
It cost me 50 cents.
What is it and what is it worth?




Thanks!
It cost me 50 cents.
What is it and what is it worth?







Thanks!
Base Metal & Precious Metals Forum
https://realcent.org/
Country wrote:France 10 centimes - Napoleon III. The mint mark is on lower reverse.
Worth maybe 50c in this condition, maybe less. F-VF coins sell for around $7.50 on EBAY, better condition much more.