This is a rare and most unusual button, the first we’ve seen. First its size is quite large at 2.25”. Second, the bkg. glows brightly in the dark so that even in a totally dark room (after exposure to light) the slogan “V For Victory/National’s Junior Patriots’ Club” text is bold and easily readable. Third, the button has extensive text on its backpaper and is titled at top with name of famous children’s show radio host. Full text is “Uncle Don’s Blackout Button/Hold To Electric Light Or Daylight For A Few Minutes. The Button Will Then Shine In Complete Darkness. Official Insignia Presented To Club Members By National Shoe Stores/Footwear Headquarters For The Entire Family/’Build A Pair & Profit Share.” Backpaper has single 1/16” dot missing near bottom edge and just a trace of age soil but nothing serious. Front surface shows scattered small hairlines but only in reflected light. Nature of the glow-in-dark material makes the cream color of the bkg. vary a little bit but this is as made. Rare and Exc.