Frank Miller's 300, 25th Anniversary (2023) Dell'Otto "VIRGIN" Cover.  Signed by Gabriele Dell'Otto and Frank Miller.

The Dell'Otto cover is a Special Edition.  Frank Miller is an Icon as an artist and a writer in the world of comics, and Gabriele Dell'Otto is a long-time name in the Comic Industry.

You can't go wrong on this book.  It's guaranteed, at a minimum, to hold its value, and it will, more than likely, keep increasing in value due to the autographs on this book.  Do your research.

Both GoCollect and Price Charting have this book listed at $600.