Worn, stained, or weathered frame for an old paper effect.
Image of torn/weathered/old paper peeling away at the corners. I use it to create vintage/old magazine and poster covers. Try using overlay and add (glow) blending modes and expereiment with other transparencies on top of each other to make the frame look like a stain, or tears, and softening/roughing up the edges with a rough eraser to your linking.
First image is the frame (transparent PNG) and second is layerd over a default CSP paper texture with blending modes applied.

