Blade for ID

[Dmitry]

With the center of gravity being closer to the tang than to the point of the blade, I have doubts about this being a throwing knife. It looks more like a spear/spontoon head. Judging from the surviving examples, majority were of socket design, but there are also period pieces with a tang which would have been inset into the wooden pole, with or without the rivets.
For argument's sake, the easiest way to verify or disprove this would be to tie a piece of wood to the tang to serve as an imaginary handle, and throw this thing 10 times into a piece of cardboard or what not, to see which end of it hits first.