These two bowls were turned from two blocks of wood that were originally side by side in the same oak board, yet they differ substantially in appearance.  The bowl on the right came from the center of the board, closer to the heart of the tree, and the one on the left was a little further from the center.  The wood grain effects are noticeably different, and the coloring of the wood is slightly different.  The curve of the sides varies slightly from one to the other, and the diameter of the bowl on the right is about one inch greater.  Offered for sale together, a discerning buyer would have a clear choice to make.  There’s no question which one I would pick.  (Click on the image to enlarge)