Yay! I'm glad to see them back together again too. Hopefully there are some more siblings out there that will show up someday. :)
That being said, I am quite curious about these wrenches. I examined the two on the left very closely at York. The machine work on them is exquisite, clearly the work of an accomplished machinist. And the quick-adjust features are pretty cool too. I suspect they are "design prototypes", built to test out or fine tune the mechanism, and are not necessarily what the final production wrenches would have looked like. (Had the design ever progressed into the production stage that is, which it apparently never did...)