Yes. Nearly a work of art just as it sets.
Historically passive pitch mechanisms have been mixed blessings. They offer arguably better, smoother control than furling machines. They do however, increase weight and complexity, and without proper maintenance the results can be disastrous. Commercially the added complexity also adds costs. Jacobs seemed to have solved the issue of having all the blades rotate in unison; a common problem with early designs. What little experiences I had with them, I was impressed with the design and durability.
Don't know if anyone remembers the "Carter's"? IIRC they produced a machine with some sort of passive torsional pitch in their blades. It was interesting in concept, but I don't remember them holding up well over time.
The work that Frans & Rinus have been doing with active pitch control is pretty impressive, and seems to solve some of the weight and component count problems. I think if I live long enough to do another one I'd be chatting with them.
~ks