Don't have a picture as of yet. I'll try to describe: The center hub is identical to the common Model A Fan. On the back side of the two blades, the double sheeted area stops about 2 inches from the hub with a weld, then continues on with one sheet metal piece, thereby eliminating moisture and rust from the inside. ( I'm sure you've seen original Model A fans with swollen blades). Also, alleviating some stress to the blades by cutting each blade's weight in half. So its overall, a somewhat lighter fan.