The Six-Valve Trombone

Adolph Sax, the inventor of the saxophone, didn't invent the saxophone on his first try. He had plenty of ideas that seemed ingenious for his time, but failed in practice. This is one of those ideas: the six-valved trombone, or as I like to call it, Saxenstine's monster. I highly encourage any history buffs to look it up. Sax had other interesting fails too, such as the multi-bell saxophone. That one may appear here soon, once I take a break from instrument modeling for a bit. Source: Objaverse 1.0 / Sketchfab