1.25" without backpaper but very early button has heavy oxidation on metal reverse and dark stain across top front plus four marks on right side and bottom. Still a marvelous design with him in chef's hat, very black skin tone, bright red lips as he holds massive cut glass round bowl containing huge mold of pale orange gelatin. Text flanking his shoulders reads "Taint Nun Too Much/Cos It's Knox's." A great design and the only example we've seen.