I grew up not far from WLW and it's giant diamond antenna mast. picture These Blaw-Knox antennas were extremely popular in the 1930s. I always wondered why the diamond shape. I found the original patent here, but it really doesn't say specifically why the diamond shape was chosen. It looks like the modern antennas which are largest on the base and taper up came several years later, so I realize that this was probably a predecessor. Still, I cannot imagine why they chose to make the tower a diamond. They should have at least been able to borrow from existing structures and I see no towers like this anywhere. I can't think of any structural or electromagnetic reason why this shape would be chosen over a tapered design. Don't get me wrong, I love the look, but I have to know why!