I first saw a wooden Bass Clarinet bell in London in 1976. Stephen Trier had made it on a lathe in the backyard of his home in Hammersmith. I was struck by the beautiful craftsmanship, which allowed one to appreciate the wood's natural grain.
Since finding bell-sized pieces of hardwood is not easy, there are those who resort gluing two smaller pieces together! Rossi Bass Clarinet bells are created from a single block of African Blackwood (Dalbergia Melanoxylon) from Mozambique . This wood is hard enough to provide the beautiful, deep sound the instrument requires. Players using this bell include Howard Klug ( Indiana University ), Henri Bok (Rotterdam Conservatory) , Pedro Rubio ( Madrid Conservatory) and Carlos Escalona( Simon Bolivar Symphony, Caracas).
VIDEO : Howard Klug playing a piece for bass clarinet by Jorge Montilla: