Gebrüder Mönnig model 155 AM-B Oboe, professional orchestral model, semi automatic, covered finger holes, special designed inside bore for high sound flexibility, till low-Bb, brilliant silver plated mechanics, reed receiver of Sterling silver, gold plated octave valves, double octave key, 3rd octave key, Ab/Bb-trill key; D#/E-trill key, C/C#- and C/D-trill keys, G#/F#- and B/C#-connection, "Philadelphia"-mechanism, forken-F mechanism, 2nd C-key, auxiliary F- and Eb-keys, double resonance key on bell, incl. patented leather case with plush lined cover