Interesting read. I hadn't noticed this before. You can click on each coin for more detail.
https://www.ngccoin.uk/resources/counterfeit-detection/top/chinese/
Only one of the 25 is a modern coin: a 2000 10Y Yuan silver Panda. I have seen dealers make mistakes on this one, but it is straightforward to spot the fakes if you have ever compared them to a genuine coin. I don't publish information on this topic any longer as the counterfeiters also learn from the explanation, but if you see me at a coin show sometime just ask and I'll be happy to discuss it with you.
Best wishes,
Peter Anthony
China Pricepedia — Chinese Coin Prices and More
The Gold & Silver Panda Coin Buyer’s Guide
Home of the Valentine Panda
PCGS Consultant
www.pandacollector.com