Oboe after an hautboy stamped KR, Copenhagen, beginning of XIXth century
Pitch A = 440 Hz
Natural or stained boxwood
3 brass or silver keys : C, Eflat, slur key (octave key)
Optional extra keys (same than oboe after Grenser and KR)
This hautboy is adapted to the modern pitch from an instrument stamped KR, the pitch of which is A = 430 Hz. The slur key or octave key allows to reach easily the high register.