That's an Orichalcum Axe model,interesting... Orichalcum Axe was never added, but you can see the resemblence to http://ffxi.allakhazam.com/db/item.html?fitem=9548 http://ffxi.allakhazam.com/db/item.html?fitem=9610
Similar to the fact that there's no Admant Cutlasses, however there is Riddil, and there is no Admant Sword but there is Hrotti.