Realcent.org

Anyone have a quick reference on the approximate silver content of a Prussian 1872 2-1/2 Silber Groschen coin? I say approximate because it has a hole in it
Actually not sure ifit has any silver at all, since it has a slight copper-ish tone to it.

Thanks!

Jason

From http://en.numista.com/catalogue/pieces14269.html:

Metal 37.5% Silver
Weight 3.24 g (1.215g silver)
Diameter 20 mm