Original oil and gas trade magazine vintage ad for SUN SHIPBUILDING & DRY DOCK COMPANY, of Chester, PA. Refining Equipment of Every Description. Manufacturers of Oil Refining Equipment, Towers, Stills, Condensers, Heat Exchanges, Storage Tanks, Agitators, Still Bottoms, Angle Works and Fabricated Plate Work. This unique 1928 old petroleum refining process industry equipment magazine advertisement would look fabulous matted and framed.