Open wrap, short

Open wrap, short

Open wrap

Open wrap

Traditional wrap, changeable

Traditional wrap, changeable

Thayer valve, open wrap

Thayer valve, open wrap

Hagmannventil, double O wrap

Hagmannventil, double O wrap

Hagmann valve, 8-shaped

Hagmann valve, 8-shaped

Bass trombone, traditional wrap

Bass trombone, traditional wrap

Bass trombone, open-flow valves, traditional wrap

Bass trombone, open-flow valves, traditional wrap

Hagmann valve, open wrap

Hagmann valve, open wrap

Bass trombone, Hagmann valves, Quart valve, 8-shaped, ES-D-valve open

Bass trombone, Hagmann valves, Quart valve, 8-shaped, ES-D-valve open