This papercraft is a life size Excalibur Arturius Helmet, a Steam-exclusive alternative helmet for Excalibur, from the free-to-play cooperative third-person shooter video game Warframe, the paper model is created by Sinner. The size of finished model is about 320 (H) x 337 (W) x 188 (D) mm.
The Excalibur Arturius Helmet is available only to players whose Warframe accounts are linked with Steam, and will need to be purchased with Steam Wallet credit, or other methods available via Steam. To equip the helmet, go into the "Arsenal" page, then click on 'Appearance' tab, the Helmet will be the first item in the section labeled 'Physique'.
You can download the papercraft model here: Warframe - Life Size Excalibur Arturius Helmet Papercraft Free Template Download [Bitcasa] [Box] [Gavitex]