Hello,
Newby here. I have enjoyed learning and looking some things up on this forum.
I received several
Sacagawea dollar coins several months ago which I have kept. I was looking at them tonight and just started wondering - how does a coin come to look like the one I am posting pictures of? Is it some kind of staining (its on both sides)? None of the others I received have anything that looks like this color.
Thanks in advance for any comments.

