It is a combination of 3 shapes. On the bottom is a short but wide rectangle. Directly on top of that is an upside-down isosceles trapezoid. Layered on top of the trapezoid, but also directly on top of the base rectangle, is a triangle that instead of coming to a point at top has an oval-like bulb.
Related to Paper Clamp Icon
Related icons are the icons with matching tags, as well as all printing icons. All icons are in the same flat style. You can either download free PNG icons or buy SVG vectors