Keefer, B flat Baritone, 3 piston, c.1923 Tag #: 201402 Serial #: 11757 Bell Diameter Bore Size Height 10 3/8″ .560″ 26 1/4″ Comments: MADE BY / KEEFER / Williamsport, P.A. inside scroll on bell. Keefer in oval on third valve. 1 2 3 on valves. 11757 and LP on second valve. Nice knurled mouthpiece receiver, like the late Distin horns. Share this:TwitterFacebookLike Loading...