Short story starter - The Cornish Box

My daughter found this wooden box in her attic. Can you write a story about it? Where might it have come from? What's inside it? Who does it belong to? She lives in Cornwall - is it to do with smuggling?

These ships are from nearby Charlestown. Have they got anything to do with the mystery?

Can you write a short story that explains everything? 

You can add ideas as comments, or give me your story after the Easter break and I'll put it on the blog.