It is 90% silver and worth about $2.62 at melt. Also, be careful when posting, it looks as if you are double posting everything. You'll get some snarky and rude comments if you keep doing that.
I have trouble figuring out if it is the C or not, which is rarer and more desirable because it is so subtle. Someone posted what a better marker is for the C reverse in another thread, and of course I forgot what it was.