Need help with id for incuse cash coin

Need help with id for incuse cash coin. Found this is a lot of mixed cash coins from countries unknown. I've seen lots of cash coins, but don't remember ever seeing an incuse cash coin before(they are almost all raised writing, not indented), so here are a few pictures, one with the coin rotated, as I am not sure which is the top. Also one of the reverse, although the reverse only has a single dot, and no other features:

China yuan - pandas and 1988 50 yuan

Not sure if the 50 yuan is real - post if you can tell me:





China yuan - pandas and 1988 50 yuan.