Shell Research 1949 Ad
Shell Research 1949 Ad. this color February 14, 1948 ad states Paper Hawkshaw Finds Hidden Clues. Its hot inside a big steam cylinder, hot and of necessity, hidden from continued inspection. Picture shows Silhouette Man with Spy glass looking at puff of steam. Magazine tear sheet picture is taken through plastic and may show wrinkles or crookedness that is not in the ad. This original magazine tear sheet measures 10 1/4 inches wide by 13 1/2 inches tall.
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