Shreyas Bb Flat Brass Finish Echo Cornet With Free Case Box & Mouthpiece : Musical Instruments - Amazon.com
Sound lost to my mind, the phrase echoed in the ear... | Chestnut Brass Company
Echo cornet, nominal pitch: C etc"
Echo Cornet Nickel - Etsy
Cornet - Wikipedia
National Music Museum (NMM) - The earliest American instrument with an echo attachment known to survive -- this rare 1851 Graves echo cornet in E-flat (high pitch) at the National Music Museum (