Keywords: Aebi Horn.jpg Skizze zum Rohrverlauf des Aebi Horns Robert01 2009-01-20 Robert01 PD-user-w wikipedia de Robert01 Original upload log de wikipedia Aebi+Horn jpg 2009-01-20 08 24 Robert01 506×316× 185239 bytes <nowiki> Andere Versionen </nowiki> French horns Musical instruments schemes Musical instruments technical drawings |