6” long pen with “Invisible Ink” and “Visibility Ink” and featured 2 special caps to protect point on each end and pocket clip. Was available for 50¢ in conjunction with code number from side panel of any Nestlé Quik package. Pen has bw image of Batman and “Batman” name. Light oxidation to pocket clip, but pen displays Exc. Comes with 7.5x14” newspaper clipping/ad for pen with great color graphics of Batman holding “Actual Size” pen. Order coupon remains un-cut. VF. Rare and first we’ve offered. From the Saul Ferris Collection.