This auction is for a VINTAGE RUSTIC GARDEN DECOR USING A REPURPOSED FAN BLADE.  This likely came off an old Case Tractor, originally used to force air across a radiator.  The original orange paint is still present on the item, making this a perfect item to place in a flower bed or garden.  It's about 16" in diameter.  There are mounting holes on this fan blade to attach it to a pole. 

You could create a windmill effect, or an oversized flower with this item.