Original oil and gas trade magazine vintage ad for EMERY MANUFACTURING COMPANY of Bradford, PA. Emery Excellence. Full Line of Petroleum Products, refined from the Peer of all Crudes - Bradford Pennsylvania Crude. Unique 1921 old petroleum products refining industry magazine advertisement. (The scan shows a slight pink tint that is not in the actual ad). On the reverse side is a fractional page ad for NORTH AMERICAN CAR COMPANY of Chicago, IL. Insulated train Tank Cars for Lease. Steel Plate Work of All Kinds. Old 1921 railroad tank car magazine advertisement.