Shell advancing knowledge Ad 1942 $12.00 Shell helping you sleep Ad 1942 $12.00 Shell Great Snake Ad 1943. $12.00 Shell Great Snake Ad 1943. $12.00 Shell the great disinfectant Ad 1944 $12.00 Shell horizons widen through research Ad 1945 $12.00 Shell industrial lubricants you can rely on Ad 1946 $12.00 Shell lubricants what the industry relies on Ad 1946 $12.00 Shell pressing business Ad 1946. $12.00 Shell horizons widen through research Ad 1946. $12.00 Shell 400 ton wallop Ad 1946 $12.00 Shell horsepower Ad 1946. $12.00 Shell X-100 oil protects your engine Ad 1946. $12.00 Shell fresh garden year around Ad 1946. $12.00 Shell donuts to dollars Ad 1946. $12.00 Shell liquid lever Ad 1947. $12.00 Shell on the map to stay. Ad was published 2/47. $12.00 Shell leader in research Ad 1947. $12.00 Shell alkaline X-100 motor oil Ad 1951. $12.00 Shell the X factor of oil Ad 1952 $12.00