Wonderful collection of shells and coral and possibly a tooth see pictures

this is a wonderful collection of shells and coral that are unique in their own ways and there is I believe a tooth I don't know where it came from what it belongs to or if it's a shell I included it but you can throw it out if you want. there is one show that does have some artwork I guess you would call it on it but the top of the shell is so beautiful that I wanted to include it with the collection thank you