If I was a betting man, I would say the one on the left. Based on the description written in the article that you provided in the other thread, which was very informative I might add....
"But it was also his fascination with trumpet calls that eventually led to a patented call. In the early spring of 2005, he began experimenting with a combination of the tube and trumpet, and the results were interesting. Essentially, he connected a small tube call to the body of a trumpet and named it the "Strumpet.""

They both are very cool looking calls though!

Neither look like a tube call to me, aside from the latex on the mouthpiece, but very nice looking indeed!