Denim Duvet Cover (Palo Alto, near Cal Ave)

I don't know if this duvet cover is for a queen or king. This was sent to me by a friend. I was using it as a couch cover. It's much too heavy to be useful for a duvet cover, which is how it ended up as a hand me down in the first place. But it's in excellent condition: no smell, tears, stains, etc... And it's vast quantity of denim. I imagine someone who sews could put this to good use. (Color in real life is much nicer, more blue.)