Here is a couple images of maps used by The Tide Water Oil Company for their "Flying A" Service Stations.
Click on the photo to make them bigger(trying a new hosting system, I think I like Imageshack better)
Chuck, I believe they were a "grill badge" for American cars. I guess trying to match the MG,Triumph, Austin, etc... grill badges. Never caught on and were dropped from catalogs in mid to late 70s, if I remember correctly.