When Yamaha started to make horns they initially copied other makers (and other makers have usually copied those who came before them). The 666 (though unfortunately named) was a great horn - an homage to the Lawson horn designs.
This one is in amazing condition. It's made of lacquered yellow brass and has PERFECT compression (0.1). It hasn't been used much - recently cleaned and ready to go! It's got just a few minor dings and is all original.
Yamaha fixed bell case included.