Cerveny, BB flat tuba, 4 rotary, ca.1980 Tag #: 200306 Serial #: 4100 Bell Diameter Bore Size Height 19 3/4″ .830″ 44 1/4″ Comments: “V.F. CERVENEY / A SYNOVE / HRADEC KRALOVE / CZECHOSLOVAKIA” on bell. Share this:TwitterFacebookLike Loading...