Extremely rare vintage, Chinese spade coins

I have a friend who is from China who brought these vintage coins over from China! She was told once she was over here that china highly frowned upon taking vintage collectors coins out of the country of China! She did not know this at the time and is living here in the US now. They were part of her great great grandmothers collection passed down from generation to generation. She is trying to open her own business so she is selling these three to get some money!
This is a great and very rare opportunity to own some of Chinese history!!!!!
These coins are very authentic and as a real as they get!!! I told her to get them graded here in the US but she is afraid to because she was told that China did not like vintage collectors coins to be removed from the country of China.
These are extremely rare coins!
If you have any questions, please feel free to ask and I’ll do my best to answer them. Thank you no