1929 SOCONY Parabase Will Keep Your Motor Cool Ad #2420

This original 7.5 x 10" magazine ad comes untrimmed from it master 10 x 13" magazine page as published in a 1929 edition of the American Agriculturist to promote Standard Oil Company of New York (SOCONY) Parabase as a way to keep your motor cool.  Ad features an early Tractor out in the field, possibly broke down.