The knife appears to be a Smith & Wesson Bowie variant, with the logo polished off and a different guard and stag handle.
In Inglourious BasterdsEdit
Aldo uses the knife to carve swastikas on German soldier's forehead, like Butz. He carries his knife when he, Bridget, Donny and Omar go undercover to blow up the cinema. When he's captured, the knife is confiscated by Hans Landa's men. On the way to the Allied lines, Landa is seen admiring the knife. At the end of the film Aldo also carves a swastika on Landa's forehead.