Imperial definitly sold their oil and Gargoyle. I think it was called Mobil Arctic. Earlier they had 2 seperate racks when Imperial still used the ball logo..
Nice rack and bottles and caps. Caps are hard to find, I went to an auction a couple tears ago, had about 5 of them bottles with caps, all the caps got swiped before they went on the block.
At Iowa gas Hemibird had a rack with bottles and caps sitting in our booth, after the first day one of the caps was gone. Caps must be hard to find, I could not believe stole one...