Identifying Chinese, Turkish? Other Asian Coins And A Medal

I'm afraid there is no question about it - they are fake. Interestingly genuine Chinese cash from the Sung dynasty were made of iron and are hence very magnetic.

Not surprised that you are confused! If they were genuine the #1 & #3 coins would be from the Wang Mang era (AD 7-22). Between the Western and Eastern Han Dynasty. The majority of his coins were made of bronze with gold, silver and shells thrown-in for good measure! There were several varieties of this 'wu shu' coin due, mainly, to illicit casting.(for which the punishment was death - but that didn't seem to be a strong enough deterrent!!). For example - various sizes and character styles, coarsely made (a Szechuan product),a double outer and a double inner rim etc.
When purchasing any coin it is important to know the origin of the coin. Buy only from an established dealer who is known and trusted in the numismatic community. The Calgary Coin website is an excellent source of information. Also, if you have the time and inclination, check the British Museum collection of ancient Chinese coins.

To all who said the Chinese cash coins might be counterfit:
I did bring the Chinese coins to someone with years of experience dealing with coins to have a look at and was told that they are in fact genuine!:)

Well except for one more brassy and newer looking than the others which is not on a photos here "which could be a contemporary restrike/forgery/counterfeit"

So I am happy with that:)