 Several late 19th century music catalogs (such as Pepper and Lyon & Healy) sold a euphonium-like instrument called the "B bass" (to distinguish it from the E and BB bass).In these catalog drawings, the B Bass had thicker tubing than the baritone; both had three valves.Along the same lines, drum and bugle corps introduced the "Bass-baritone", and distinguished it from the baritone.