2 Vintage SHELL OIL ADVERTISING "Petroleum Story Oil Field Grows" flyer pamphlet

Description

Here are two vintage SHELL OIL COMPANY advertising pamphlets: "The Story of Petroleum" and "How an Oil Field Grows."    Both pamphlets discuss the history of petroleum - from exploration to distribution.     The larger pamphlet measures 8 1/2 wide by 11 inches high, and it has 12 pages.     The smaller pamphlet measures 6 inches wide and 9 inches tall, and it is 32 pages long.     I don't see a date on them; however, judging by the pictures,  I believe these are from the 1950's or 1960's.    Both pamphlets have some staining on the front.   The larger one has some damage with a couple of paper tears on the front edge, internal page edges, and back.   The graphics are in good shape on the inside, and the smaller one has some orange color to it.    These are cool unique pieces at a low price.  I will ship USPS First Class.   Thanks for looking.