Tool identification

Alright guys it has arrived and I have to say it is truly massive 😂😂 It's just slightly smaller than my hand and weighs in at 608gr. It seems to be ground from both sides, well both sides have horizontal grinding marks and the blade tapers to almost nothing (its a convex grind as well). As for the construction, it is very solid, zero movement in the handle and the blade has rounded edges along the sides. If anybody has any wisdom to offer about sharpening this monster, i'm all ears 😅 @Leathercraft Masterclass @Fadi @Anders from Jävlar @VII XCIV