Coin 1: The pattern around the rim, and the ridge outer rim are unique... any thoughts? coin 2: the incise Greek key pattern around the rim...any thoughts? coin 3: mimics Chinese pattern dollar, no denomination stated, any thoughts? coin 1:
Middle one is occupation money from Japanese held China. 10 fen, Hua-Hsing Bank, Year 29. (1940) They are relatively common, I think I have one. Worth a few dollars. I assume the other two are fakes based on the current state of Chinese coins. I think they are decorative, but based on real coins. You could weigh them. Fakes are usually not even silver. These are probably better posted as world coins than in the ancients forum. Ancients is by loose agreement pre-1500 or so. Medieval is not really ancient, but a lot of the same expertise is useful for both.
The second one does appear to be a real issue although if it was being offered for sale or obtained from the same source as the others I would be concerned that it was a fake. I have seen a number of sellers from a few European countries sell this stuff in significant volume on ebay. They throw in fakes along with their fantasy issues.