Asian old coins

So I told the story of my mother being given one of these, and happenstance like magic, I bought a Real nice coin lot a little bit back, and these were in them, I am getting to the bottom of the pile and I do tokens last. Coins are cool but so are tokens. Tokens are coins essentially, I love anything historical like this. Are these real or fake, if real please tell me more about them, all I know is that they look old, and are of Asian origin.



the last pic was the one my mother gave me, that I got a few guesses with what it was, was told Song dynasty.



thanks
~Barnabus

With some help I have identified that the one coin is a 1170's/80's Chunxi cash coin made in T'ung-an district in Fuken. However the one with the grass script at bottom, I cannot find which emperor it would be. I was told it may be a charm. Can anyone help me with that?