​Original vintage magazine ad for ROCKY MOUNTAIN SERVICE COMPANY.  Calvin D. Hembree, President has Ford trucks with tandem tilt.  Special bodies for oil well cementing rigs to keep all the equipment and 250 bags of cement under cover.  Ford pickup trucks give 25.2 percent more MPG. Main office was located in Denver, CO. 
This 1959 two page gatefold old petroleum industry advertisement would display beautifully matted and framed.