The lower one has a smaller bulb. It has a glass chimney.
I don't know the design............ The item "Rare Vintage Fenton hurricane electric lamp, milk glass 3 way light" is in sale since Wednesday, October 10, 2018. This item is in the category "Pottery & Glass\Glass\Art Glass\North American\Fenton". The seller is "junksalejunkie" and is located in Grapeland, Texas. This item can be shipped to United States.