I just discovered a new type of frame - called a floater frame. Instead of mounting a painting through the back of the frame, which hides the painting edges, you "float" the painting on a solid board and the edges show.

This is very effective with small paintings, and gives them a lot of presence on a wall.

I was able to secure this frame at a great price, so I am happy to pass along those savings. 

"Tennessee Valley" is a oil painting that measures just 6 x 6 inches, and is on sale for only $150 at Moss & Moss, in Mill Valley, California.