I really love this photo of the Vintage 1960's Kellogg's Frosted Flakes Cereal Box with the1966 Batman Printing Set Offer, it's a Classic! The special offer was for a Mail-Away Premium of the BATMAN PRINTING KIT you could get for 25¢. Yes, you read that right, twenty five cents!! I seriously LOVE the vintage graphics of both Tony The Tiger & the old 60's Batman Logo. This box is shown flat & unused, what cereal box collectors call "Factory Flat". This usually means they were boxes that were unused & left over at the factory. These are really difficult to find this MINT. Some Kellogg's employee in the 1960's must have brought this home because his kids liked Batman! Be sure to click the small picture up above for a larger, more detailed, photo!