Hans Hoyer K10A-L Double Horn
Hans Hoyer K10A-L, F/Bb- Double Horn, Custom - Orchestra Series, Conical rotary valves with 3B linkage system, Detachable, hand hammered medium-large bell, Corrosion resistant gold brass leadpipe, Brass body, Bell: Ø310 mm, Bore: Ø11.90 mm, Valve cover...