Invented and patented on December 31, 1861 by Louis Julien JAULIN.
According to Jaulin it was intented as an easy-to-play substitute for oboe and cor anglais
Cylindrical mahogany body. A chrome plate receives the pistons housing the free reeds, these are arranged like a keyboard, the piston heads being of ivory and ebony. Chromatic instrument of 2 1/4 octaves (28 notes from B to D).
Two lead pipe to play from two different positions.
Resin mouthpiece. In its original box.
Total length without mouthpiece 540 mm
Signé : HARMONI-COR
J. JAULIN INVR
B SGDG
A PARIS