Original oil and gas trade magazine vintage ad for VISCO PRODUCTS COMPANY, INC. Main office and factory was located at 2600 Nottingham at Kirby Drive, Houston, TX. VISCO Laboratory Reports Take The Risk Out Of Desalting Treatments. VISCO Oil Treating Compound, Consistently Efficient Oil Industry Chemicals. This unique 1955 old petroleum and petrochemical refining process industry magazine advertisement would look sensational when matted and framed. Approximate size 9 x 12 inches.