Flûte d'ivoire

Flûte d'ivoire (Fr.: ivory flute), obs. Fr. organ stop of wide-scaled, open cylindrical flue pipes, corresponding to the tibia aperta or Offenflöte, said to have been made of ivory. In Ger. workshops the name was corr. to flaut devoir and, finally, divinare (133). Mahrenholz, Christian. Die Orgelregister, ihre Geschichte und ihr Bau. Kassel, 1942.