Oboe Mod.4000, by Oscar Adler & Co.
orchestra model
finest Grenadilla wood
semi automatic mechanics, silver plated
covered finger holes
double octave key
3rd octave key
C/C#- and C/D-trill key
G#/F#- and B/C#-Connection
Ab/Bb-trill key
2nd C key
forken F-mechanism
auxiliary F-and Eb-keys
till low-Bb
resonance key on bell