ContraBasson Model 310, by Gebr. Mönnig

professional model

till subcontra-Bb

compact version

14 rollers: C and Eb (wing joint); Eb and C# (little finger left hand); F, F# and Ab (little finger right hand); C and D (left thumb); Bb, 2 x E, F# and Ab (right thumb)

double Eb-key for right index finger

E/F#-trill key (wing joint)

3rd octave valve for better response in high register

self-drainage of tuning slide

well seasoned and long time stocked flamed Bosnian Maple wood

lacquered body

high brilliant silver plated mechanics and bell

3-D hand rest

1 bocal "Heckel" CCV Nr. 1

rollable AluFlight-case and accessories