Hoyer 6801 Double French Horn — The Wind Section
Used Hans Hoyer G10 F/Bb Double Horn (SN: 494985)
Hans Hoyer 801G-L Doppelhorn - Vogt instruments
Hans Hoyer 6801A Kruspe Style F / Bb Double French Horn — Tom Lee
Hans Hoyer G10 Double Horn - Schmitt Music
Hans Hoyer 6801-L Double Horn – Thomann UK
Hans Hoyer 6801G-L Heritage Doppelhorn - Vogt instruments
Hans Hoyer Markneukirchen
Hans Hoyer G10 American Design Double French Horn - Mechanical