Hans Hoyer 801 F/B Doppelhorn M Abschr. - Hans Hoyer 801 F/Bb- double horn, 3B- ball joints, nickelsilver inner- and outerslides, Ø 310 mm bell, 11,90 mm bore, goldbrass leadpipe, engraved valve caps, detchable bell, brass body and bell, clear lacquered, incl. mouthpiece and case Brass / Horns