Are the wings on this correct? They look odd to me. Did they have slight variations between U.S. & Canada?

http://www.ebay.com/itm/antique-gas-oil-...=item2ec4d88553

they appear to be stretched..

this one on Petro Joe's website appears to be the same......

http://www.petrojoe.com/store/index.php/Old-Collectibles/DSCN7616