Russian Bassoon (Bass Horn), probably French

An introduction to Flugel Horns – John Packer

Octet for clarinet, bassoon, French Horn, string quartet and bass: Fanfares and Entrances (Schickele) - song and lyrics by The American Chamber Ensemble

Brass aerophone hi-res stock photography and images - Page 3 - Alamy

Basson russe, nominal pitch: C

Horn (instrument) - Wikiwand

Bass horn hi-res stock photography and images - Alamy

30 hot Canadian classical musicians under 30, 2023 edition

Russian Bassoon in C, French

The 15 most weird instruments of all time: Which one ranks as the most bizarre?