DeMire's Marching Aid for Cornet, by Nato Manufacturing Company - RARE!

Description

DeMire's Marching Aid for cornet, from the 1960s. Made by Nato Manufacturing in Berkley, MI. Device attaches to mouthpiece and uses chin rest to train player to hold their horn up at the proper playing position. Quite rare-- I haven't used or even seen one of these before, so I can't speak for its efficacy. Seems to be complete, with instructions.