Vintage Brass Drawer Handles/Pulls ?? Worlds Fair Motif

I recently came across a set of 6 of these drawer handles which I believe to be brass, they were so unusual I had to purchase them. I have only been able to find one other online that states they think that it is a "Worlds Fair Motif" from the 1920's-1930's. If anyone has any information about them I would very much appreciate any input ! Thanks !