Philgas and Skelgas  were widely seen in the midwest. Several years ago I sent photos of these cars to Atlas. I received no reply. Champ decals brought out Philgas HT-66 and I think Skelgas. In stead they bring out company's I've never heard of. Wouldn't hurt to try again. I have a photo of Philgas with and without platform. I may have to take a car strip it , paint it black and decal it.