Your question is strange? Can I post some pictures of my old clothes and ask "are they worth keeping"? lol As for the coins the large ones all look fake to me and the small ones look worth very little but "keeping" is up to you.
You have a nice little collection of world coins that you've posted lately. I hope you can get some answers here.
The top three are probably (95%+) all fake. The china silver dollars are the most counterfeited coins in the world. The rest look fine. The copper dragon coin is 1906 Hupeh 10 cash maybe $2-3 value in that condition. The others are modern china taiwan and singapore coins no real value. I collect and love the copper chinese dragon coins and also have a few graded china silver dollar coins.
The Japanese coins mixed in there are pocket change, but nothing wrong with collecting pocket change (a significant portion of our collections were pocket change at one point or other in history).
