Thank you, Jesse.
This is exactly what I thought it was. This is a Custom exhaust throttle made late in the 70's by Art Hamon for our 20 size Wingding's. Jim and I both built Wingdings kits in 1979. I chose to not have to have water cooling on my exhaust throttle, Jim did.. so now I have both...
I have (2) Pipes that I THINK are Rossi 67/80 pipes.. Not in perfect condition, but they don't look like they have ever been used Sold as a Pair $80 shipped priority mail within the US....