Hamur işleri bir mektup yaz Geçersiz trombon de piston safra kesesi Christchurch Akdeniz
File:Trombone a six pistons-IMG 0853-white.jpg - Wikimedia Commons
Trombone A Piston can produce with equal facility the seven series of harmonies belonging to the common horns, vintage line drawing or engraving illus Stock Vector Image & Art - Alamy