1-7/16" with the product name on three separate panel designs surrounding 1" cello insert portraying mallard duck being shot from the air. Cello surface is slightly convex as made but it also has some bumpiness to its surface although this is apparent only to the touch. There is no trace of staining whatsoever. Reverse of the piece has raised text "Dead Shot Powder/Manufactured/By/American/Powder Mills/Boston-Chicago." The front lower left rim has a little area where the metal finish has slight brown tone to it rather than muted brass like the top and right panels. A very small defect and otherwise the brass luster is N. Mint. Complete with its original black leather strap. Rare.