Unique shell pin

A very unique and one of a kind, probably handmade, pin made from seashells. About 2.5" wide. I'm listing so many pieces from my personal jewelry collection (I have a ludicrous amount of vintage pieces), it'd take forever to measure everything, so I'm happy to provide measurements upon request. Reach out with questions, requests to add a video or any other detailed photo to the listing, etc! Will immediately report spammers that ask me to send photos to their personal number etc. Clearing out my personal collection to fund house projects. Thank you!!