Antique asian Mud man set playing board game...

I found this mud men at a thrift store, I didn't know what they were but thought they were very unusual, after some digging on the internet, I found out they were mud men but they don't seem typical of all the mud men I have seen.  However, from what I understand, they do have many charicteristics of an authentic vintage or antique mud man.  I would like to know what the value is, age, and anything else that you can tell me about them.  They seem pretty heavy for the size of them as well, and there is a tiny mark on the bottom, but I have no idea what it means.  Thank you for your time and sharing your knowledge with me.  :-)

Best regards, Michelle