The picture below shows a larger front and back view of this 1964 - 1965 New York World's Fair Mitsubishi Electric Advertising Premium Pin. The pin is made of imprinted plastic with a metal safety pin on the back. It is printed in blue and red with the Mitsubishi logo. It is marked as follows:
N.Y. WORLD'S FAIR '64 - '65 MITSUBISHI ELECTRIC
The advertising pin measures 1-1/2'' wide. It appears to be in excellent condition as pictured.