I agree with biokemist6. As a preliminary, and just looking at the screen, I would tender a guess that it would be silver plated copper, bronze or brass.
Weighing the 'coin' would obviously useful. Find out it's volume and therefore density would also be useful. The specific gravity of copper is 8.93, the specific gravity of silver is higher at 10.5. If my guess is right, the specific gravity would be only a tiny bit higher than that of copper.
Weighing the 'coin' would obviously useful. Find out it's volume and therefore density would also be useful. The specific gravity of copper is 8.93, the specific gravity of silver is higher at 10.5. If my guess is right, the specific gravity would be only a tiny bit higher than that of copper.
























