1.25" w/covered tin back and fixed horizontal bar pin. Amazingly it retains 80% of the affixed back paper reading in part "Made By R M Johnson Cherryvale, Kas." Design features real photo portraits of candidates atop a swirling cyclone. Known as the Bryan Tornado among hobbyists this is among the most interesting designs of any coattail button. A superb example w/only trivial wear. NM. Rare.