Wikipedia
Couesnophone
The couesnophone, also known as the goofus or queenophone, is a free-reed musical instrument resembling a saxophone. Its reeds vibrate when the desired keys are activated and the player blows through a tube. French manufacturer Couesnon was awarded the patent no. 569294 in 1924 for an instrument that was described as a saxophone jouet ( fr. "toy saxophone"). However, the couesnophone is a polyphonic instrument, while the saxophone is monophonic.