This paper model is Dragonbone War Axe, a One-Handed weapon in the game The Elder Scrolls V: Dawnguard, the paper model is created by ZombieGrimm. The finished model measures about 29 inches. The Dragonbone War Axe has the highest base damage of all war axes, but is also the heaviest.
The Dragonbone War Axe requires a Smithing level of 100 and the Dragon Armor perk to create. It can be upgraded with a Dragon Bone at a grindstone and also benefits from the Dragon Armor perk, which doubles the improvement. [Source: wikia]
You can download the papercraft model template here: The Elder Scrolls V: Dawnguard - Dragonbone War Axe Free Papercraft Download