1.25" from the 1935 Universal serial "Tailspin Tommy And The Great Air Mystery." Button has portraits of the three stars Clark Williams, Noah Berry Jr. and Jean Rogers plus image of an airplane flying vertically. Tiny text below their portraits "A Universal Picture." Reverse celluloid along the metal rim has .75" split but split is so narrow as to be barely visible. No backpaper but name of maker Philadelphia Badge is on the curl. Tiny bit of typical surface wear shows in reflected light only. Button displays clean and glossy with perfect centering. VF.