1851 Great Exhibition: Official Catalogue: Class X.: Koenig and Pask
504. KOENIG and PASK, 441 Strand.
A complete set of brass horns with valves (soprano to contra bass).
French horn, trombones, and trumpets.
Trombones with slides.
Ophicleide with keys.
Euphonion with four valves.
Cornet a pistons in various designs.
Clarionets, from a uew design, and in metal.
Flutes, on a new system.
Drums—bass, tenor, and side, for military purposes.