Oboe Mod.4000, by Oscar Adler & Co.

orchestra model

finest Grenadilla wood

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

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