1.25". We know of eight in this series with some of the others including Dizzy Dean, Jimmie Dykes, and Jimmie Foxx. Button has about a dozen surface scratches to the right of his photo on the white background with a few much smaller marks above but for the most part only visible in reflected light and the button still displays quite clean and glossy although edges are very slightly cloudy due to a bit of air under the cello. Still with full gloss.