Yes, as stated by Rinos, they are the same...just Wetterlings re-sold by Husky. You can actually get them cheaper that way....regular Wetterlings axes run a little more expensive. But they are the same thing.
Dont know about the sheaths though.
Stihl does the same thing. They sell Ochsenkopf (ox-head) axes re-branded as Stihl (though the axe heads still have the Ochsenkopf markings, same with Husky axes still having Wetterlings markings).