1/1000 Royal Reserve Trireme

The royal reserve trireme is a variant of the ship that has a transom stern, unlike the production variant.  The Argo and Talos are both made to identical specifications, but each have unique ornamentation not present on the reserve ship.  The whole purpose of the reserve ship is to provide a flagship that can carry the monarch of Alexandria in style in the event that neither of the former two ships are available... such as if they've been shot down.