Shell Oil Shasta Dam 1942 Ad $9.00 Shell Oil Industrial Lubricants 1942 Ad. $9.00 Shell Oil Industrial Lubricants 1942 Ad $9.00 Shell Industrial Lubricants 1942 Ad $9.00 Shell Research 1943 Ad $9.00 Shell Research 1943 Ad. $9.00 Shell Research 1943 Ad. $9.00 Shell Research 1943 Ad. $9.00 Shell Research 1943 Ad $9.00 Shell Research 1943 Ad $9.00 Shell Research 1943 Ad $9.00 Shell Research 1943 Ad. $9.00 Shell Research 1943 Ad $9.00 Shell Research 1943 Ad $9.00 Shell Super Fuel 1943 Ad. $9.00 Shell Super Fuel 1943 Ad $9.00 Shell Industrial Lubricants 1944 Ad $9.00 Shell Industrial Lubricants 1944 Ad $9.00 Shell Research 1944 Ad $9.00 Shell Research 1944 Ad $9.00