1.25” with no backpaper or maker’s name. Reverse has .75” hairline cello split along the collet but this lays very flat and does not create any problem in terms of a bump when the piece is viewed from the front. This is from the 1930s and with very youthful photo of Roy wearing his large cowboy hat and wearing a floral pattern shirt. Surface has a number of very faint hairline scratches showing just a little in reflected light but button displays Mint with normal viewing. One of only 2 known to us. Comes with Hake’s COA.