You can't always believe what you see.  I bought a post card, on line, of the Woodchuck Mill.  When it arrived, it didn't look right.  It is above, on the left.  The chat pile was on the wrong side of the mill!  After studying it a while, I realized that the negative was "flipped" when the printing was done.  On the right is what the picture should be.  In the near background is the Jay Bird.